共查询到20条相似文献,搜索用时 78 毫秒
1.
Zhixun Xie Liji Xie Anli Chen Jiabo Liu Yaoshan Pang Xianwen Deng Zhiqin Xie Qing Fan 《Journal of virology》2012,86(24):13854-13855
We report here the complete genomic sequence of a novel Newcastle disease virus (NDV) strain, egret/China/Guangxi/2011, isolated from an egret in Guangxi Province, southern China. A phylogenetic analysis based on a fusion gene comparison with different NDV strains revealed that egret/China/Guangxi/2011 was phylogenetically close to genotype VIIa NDV, and the deduced amino acid sequence was 112R-R-R-K-R-F117 at the fusion protein cleavage site. The whole nucleotide sequence had the highest homology (93.3%) with the sequence of strain chicken/Sukorejo/019/10 (GenBank accession number ). This study will help us to understand the epidemiology and molecular characteristics of Newcastle disease virus in a migratory egret. HQ697255相似文献
2.
In this short report, the genome-wide homologous recombination events were re-evaluated for classical swine fever virus (CSFV) strain . We challenged a previous study which suggested only one recombination event in AF407339 based on 25 CSFV genomes. Through our re-analysis on the 25 genomes in the previous study and the 41 genomes used in the present study, we argued that there should be possibly at least two clear recombination events happening in AF407339 through genome-wide scanning. The reasons for identifying only one recombination event in the previous study might be due to the limited number of available CSFV genome sequences at that time and the limited usage of detection methods. In contrast, as identified by most detection methods using all available CSFV genome sequences, two major recombination events were found at the starting and ending zones of the genome AF407339, respectively. The first one has two parents AF407339 (minor) and AF333000 (major) with beginning and ending breakpoints located at 19 and 607 nt of the genome respectively. The second one has two parents AY554397 (minor) and AF531433 (major) with beginning and ending breakpoints at 8397 and 11,078 nt of the genome respectively. Phylogenetic incongruence analysis using neighbor-joining algorithm with 1000 bootstrapping replicates further supported the existence of these two recombination events. In addition, we also identified additional 18 recombination events on the available CSFV strains. Some of them may be trivial and can be ignored. In conclusion, CSFV might have relatively high frequency of homologous recombination events. Genome-wide scanning of identifying recombination events should utilize multiple detection methods so as to reduce the risk of misidentification. GQ902941相似文献
3.
DNA sequencing has been revolutionized by the development of high-throughput sequencing technologies. Plummeting costs and the massive throughput capacities of second and third generation sequencing platforms have transformed many fields of biological research. Concurrently, new data processing pipelines made rapid de novo genome assemblies possible. However, high quality data are critically important for all investigations in the genomic era. We used chloroplast genomes of one Oryza species (O. australiensis) to compare differences in sequence quality: one genome () was obtained through Illumina sequencing and reference-guided assembly and the other genome ( GU592209) was obtained via target enrichment libraries and shotgun sequencing. Based on the whole genome alignment, KJ830774 was more similar to the reference genome (O. sativa: GU592209) with 99.2% sequence identity (SI value) compared with the 98.8% SI values in the AY522330 genome; whereas the opposite result was obtained when the SI values in coding and noncoding regions of KJ830774 and GU592209 were compared. Additionally, the junctions of two single copies and repeat copies in the chloroplast genome exhibited differences. Phylogenetic analyses were conducted using these sequences, and the different data sets yielded dissimilar topologies: phylogenetic replacements of the two individuals were remarkably different based on whole genome sequencing or SNP data and insertions and deletions (indels) data. Thus, we concluded that the genomic composition of KJ830774 was heterogeneous in coding and non-coding regions. These findings should impel biologists to carefully consider the quality of sequencing and assembly when working with next-generation data. GU592209相似文献
4.
The purpose of this table is to provide the community with a citable record of publications of ongoing genome sequencing projects that have led to a publication in the scientific literature. While our goal is to make the list complete, there is no guarantee that we may have omitted one or more publications appearing in this time frame. Readers and authors who wish to have publications added to subsequent versions of this list are invited to provide the bibliographic data for such references to the SIGS editorial office.
- Phylum Crenarchaeota
- Thermoproteus tenax, strain Kra1, DSM 2078T sequence accession [ FN8698591]
- Phylum Euryarchaeota
- Haloarcula hispanica CGMCC 1.2049, sequence accession (chromosome I), CP002921 (chromosome II), and CP002922 (plasmid pHH400) [ CP0029232]
- Methanococcus maripaludis, strain X1 (unculturable) sequence accession [ CP0029133]
- Phylum Proteobacteria
- Acinetobacter baumannii strain 1656-2, sequence accession [ CP0019214]
- Arcobacter butzleri strain ED-1, sequence accession , AP012047, and AP012048 [ AP0120495]
- Brucella suis strain 1330, sequence accession and CP002997 [ CP0029986]
- Campylobacter fetus subsp. venerealis NCTC 10354, sequence accession [ AFGH010000007]
- “Chromobacterium sp.” strain C-61, sequence accession to CAEE01000001 [ CAEE010011188]
- Cronobacter sakazakii strain E899, sequence accession [ AFMO000000009]
- “Desulfovibrio sp.” strain A2, sequence accession [ AGFG0100000010]
- “Erythrobacter sp.” strain NAP1, sequence accession [ NZ_AAMW0000000011]
- Escherichia coli strain XH140A, sequence accession [ AFVX0100000012]
- Escherichia coli strain XH001, sequence accession [ AFYG0100000013]
- Haemophilus haemolyticus strain , sequence accession M19107 [ AFQN0000000014]
- Haemophilus haemolyticus strain , sequence accession M19501 [ AFQO0000000014]
- Haemophilus haemolyticus strain , sequence accession M21127 [ AFQP0000000014]
- Haemophilus haemolyticus strain , sequence accession M21621 [ AFQQ0000000014]
- Haemophilus haemolyticus strain , sequence accession M21639 [ AFQR0000000014]
- Idiomarina sp.” strain A28L, sequence accession [ AFPO01000001 to AFPO0100002815]
- Ketogulonicigenium vulgare” strain WSH-001, sequence accession (chromosome), CP002018 (plasmid pKVU_100), and CP002019 (plasmid pKVU_200) [ CP00202016]
- Methylobacter tundripaludum strain SV96, sequence accession [ AEGW0000000017]
- Pseudogulbenkiania sp.” strain NH8B, sequence accession [ AP01222418]
- Pseudomonas aeruginosa NCGM1179, sequence accession through DF126593 [ DF12661319]
- Pseudomonas putida strain B001, sequence accession to CAED01000001 [ CAEE0100026220]
- Pseudomonas putida strain B6-2, sequence accession [ AGCS0100000021]
- Pseudomonas stutzeri CGMCC 1.1803, sequence accession [ CP00288122]
- Ralstonia solanacearum phylotype IB, strain Y45, sequence accession [ AFWL0100000023]
- Rheinheimera sp.” strain A13L, sequence accession through AFHI01000001 [ AFHI0100007224]
- Sphingobium yanoikuyae strain XLDN2-5, sequence accession [ AFXE0100000025]
- Vibrio cholerae strain Amazonia, sequence accession [ AFSV0100000026]
- Phylum Firmicutes
- Bacillus coagulans strain XZL4, sequence accession [ AFWM0100000027]
- Bacillus megaterium strain WSH-002, sequence accession (chromosome), plasmids CP003017 (plasmid pBME_100), CP003018 (plasmid pBME_200), and CP003019 (plasmid pBME_300) [ CP00302028]
- Bacillus pumilus strain S-1, sequence accession [ AGBY0000000029]
- “Desulfosporosinus sp.” strain OT, sequence accession [ AGAF0100000030]
- Lentibacillus jeotgali strain Grbi, sequence accession [ AGAV0100000031]
- Leuconostoc carnosum KCTC 3525, sequence accession [ BACM0100000032]
- Listeria ivanovii subsp. ivanovii strain PAM 55, sequence accession [ FR68725333]
- Paenibacillus riograndensis strain SBR5, sequence accession [ AGBD0100000034]
- Sporolactobacillus inulinus strain CASD, sequence accession [ AFVQ0000000035]
- Streptococcus pseudopneumoniae strain IS7493, sequence accession and CP002925 [ CP00292636]
- Streptococcus salivarius strain 57.I, sequence accession and CP002888 [ CP00288937]
- Streptococcus salivarius strain M18, sequence accession [ AGBV0100000038]
- Streptococcus suis SS12, sequence accession [ CP00264039]
- Streptococcus suis D9, sequence accession [ CP00264139]
- Streptococcus suis D12, sequence accession [ CP00264439]
- Streptococcus suis ST1, sequence accession [ CP00265139]
- Weissella thailandensis strain fsh4-2, sequence accession through HE575133 [ HE57518240]
- Phylum Tenericutes
- Mycoplasma anatis strain 1340, sequence accession [ AFVJ0000000041]
- Mycoplasma capricolum subsp. capripneumoniae strain M1601, sequence accession [ AENG0100000042]
- Mycoplasma putrefaciens Type strain KS1, sequence accession [ CP00302143]
- Corynebacterium pseudotuberculosis strain PAT10, sequence accession [ CP00292444]
- Phylum Actinobacteria
- Bifidobacterium animalis subsp. lactis strain BLC1, sequence accession [ CP00303945]
- Bifidobacterium breve strain DPC 6330, sequence accession [ AFXX0100000046]
- Brachybacterium squillarum strain M-6-3, sequence accession [ AGBX0100000047]
- “Citricoccus sp.” strain CH26A, sequence accession [ AFXQ0100000048]
- Corynebacterium glutamicum strain S9114, sequence accession [ AFYA0100000049]
- Dietzia alimentaria strain 72, sequence accession [ AGFF0100000050]
- Mycobacterium colombiense CECT 3035, sequence accession [ AFVW0000000051]
- Mycobacterium tuberculosis NCGM2209, sequence accession and DF126614 [ DF12661552]
- Rhodococcus erythropolis strain XP, sequence accession [ AGCF0100000053]
- Serinicoccus profundi MCCC 1A05965T, sequence accession [ AFYF0000000054]
- Phylum Spirochaetes
- Leptospira interrogans, sequence accession (CI), CP001221 (CII) [ CP00122255]
- Phylum Bacteroidetes
- Bacteroides faecis Type strain MAJ27T, sequence accession [ AGDG0100000056]
- Bizionia argentinensis, Type strain JUB59T sequence accession [ AFXZ0100000057]
- Flavobacterium branchiophilum strain FL-15, sequence accession [ FQ85918358]
- “Flavobacteriaceae” strain S85, sequence accession [ AFPK0000000059]
- Phylum Thermotogae
- “Thermotoga sp.” strain RQ2, sequence accession [ CP00096960]
Non-Bacterial genomes
- Aspergillus kawachii IFO 4308, sequence accession through DF126447, BACL01000001 through BACL01001641, DF126592 [ AP01227261]
- Cajanus cajan pigeonpea, sequence accession PRJNA72815 [62]
- Coxsackievirus A22, sequence accession [ JN54251063]
- Gordonia phage GRU1, sequence accession [ JF92379764]
- Gordonia phage GTE5, sequence accession [ JF92379664]
- Heterocephalus glaber naked mole rat, sequence accession , AFSB00000000 [ AFSB0100000065]
- Human Adenovirus Prototype 17, sequence accession [ HQ91040766]
- Macaca mulatta lasiota rhesus macaque, sequence accession [ AEHL0000000067]
- Macaca mulatta mulatta rhesus macaque, sequence accession [ AEHK0000000067]
- Porcine epidemic diarrhea virus, sequence accession [ JN54722868]
5.
Zihao Pan Jiale Ma Wenyang Dong Wenchao Song Kaicheng Wang Chengping Lu Huochun Yao 《Applied and environmental microbiology》2015,81(3):976-985
Streptococcus suis is an emerging zoonotic pathogen causing severe infections in pigs and humans. In previous studies, 33 serotypes of S. suis have been identified using serum agglutination. Here, we describe a novel S. suis strain, , isolated from an outbreak of acute piglet meningitis in eastern China. Strong pathogenicity of meningitis caused by strain CZ130302 was reproduced in the BALB/c mouse model. The strain showed a high fatality rate (8/10), higher than those for known virulent serotype 2 strains P1/7 (1/10) and 9801 (2/10). Cell adhesion assay results with bEnd.3 and HEp2 cells showed that CZ130302 was significantly close to P1/7 and 9801. Both the agglutination test and its complementary test showed that strain CZ130302 had no strong cross-reaction with the other 33 S. suis serotypes. The multiplex PCR assays revealed no specified bands for all four sets used to detect the other 33 serotypes. In addition, genetic analysis of the whole cps gene clusters of all serotypes was performed in this study. The results of comparative genomics showed that the cps gene cluster of CZ130302, which was not previously reported, showed no homology to the gene sequences of the other strains. Especially, the wzy, wzx, and acetyltransferase genes of strain CZ130302 are phylogenetically distinct from strains of the other 33 serotypes. Therefore, this study suggested that strain CZ130302 represents a novel variant serotype of S. suis (designated serotype Chz) which has a high potential to be virulent and associated with meningitis in animals. CZ130302相似文献
6.
Caliciviruses that cause diarrhea have been reported in both industrial and developing countries, including China, in recent years. Here, we report the complete genome of a porcine calicivirus strain, Ah-1, which is prevalent in swine groups in Anhui Province. This viral genome is 7,342 nucleotides (nt) long, excluding the poly(A) of the 3′ end, which is 202 nt shorter in the 3′ untranslated region (UTR) than that of the other Chinese porcine calicivirus strain (Ch-sw-sav1; GenBank accession number ), previously isolated in the Shanghai area, China, though they shared 98.8% sequence identity over the whole genome excluding the 202-nt-shorter region. FJ387164相似文献
7.
The purpose of this table is to provide the community with a citable record of publications of ongoing genome sequencing projects that have led to a publication in the scientific literature. While our goal is to make the list complete, there is no guarantee that we may have omitted one or more publications appearing in this time frame. Readers and authors who wish to have publications added to subsequent versions of this list are invited to provide the bibliographic data for such references to the SIGS editorial office.
Phylum Euryarchaeota
- Halococcus hamelinensis, sequence accession PRJNA80845 [1]
- “Methanocella conradii” HZ254, sequence accession [ CP0032432]
- Thermococcus litoralis NS-C, sequence accession [ AHVB000000003]
Phylum Crenarchaeota
- Candidatus Nitrosopumilus salaria” BD31, sequence accession [ AEXL000000004]
- Candidatus Nitrosoarchaeum limnia, sequence accession [ AHJG000000005]
Phylum Deinococcus-Thermus
- Deinococcus gobiensis, sequence accession [ CP0025366]
Phylum Proteobacteria
- Aggregatibacter actinomycetemcomitans strain ANH9381, sequence accession [ CP0030997]
- Alishewanella jeotgali, sequence accession [ AHTH000000008]
- Enterobacter aerogenes KCTC 2190, sequence accession [ CP0028249]
- Escherichia coli O104:H4, sequence accession [ AFOB0200009210]
- Helicobacter pylori strains 17874, sequence accession PRJNA76569 [11]
- Helicobacter pylori strains P79, sequence accession PRJNA76567 [11]
- Janthinobacterium sp. Strain PAMC 25724, sequence accession [ AHHB0000000012]
- Klebsiella oxytoca KCTC 1686, sequence accession [ CP00321813]
- Klebsiella pneumoniae subsp. pneumoniae HS11286, sequence accession (chromosome), CP003200 (plasmid pKPHS1), CP003223 (plasmid pKPHS2), CP003224 (plasmid pKPHS3), CP003225 (plasmid pKPHS4), CP003226 (plasmid pKPHS5), CP003227 (plasmid pKPHS6) [ CP00322814]
- Oceanimonas sp. GK1, sequence accession [ CP00317115]
- “Pseudogulbenkiania ferrooxidans” Strain 2002, sequence accession [ NZ_ACIS0100000016]
- Pseudomonas extremaustralis 14-3b, sequence accession [ AHIP0000000017]
- Pseudomonas sp. Strain PAMC 25886, sequence accession [ AHHC0000000018]
- Psychrobacter, sequence accession [ AHVZ0000000019]
- Rahnella sp. Strain Y9602, sequence accession [ CP00250520]
- Rhizobium sp. Strain PDO1-076, sequence accession [ AHZC0000000021]
- Rhodospirillum photometricum DSM122, sequence accession [ HE66349322]
- “Rickettsia sibirica sibirica”, sequence accession [ AHIZ0000000023]
- Rickettsia sibirica subsp. mongolitimonae strain HA-91, sequence accession [ AHZB0000000024]
- Salmonella enterica subsp. enterica Serotype Enteritidis Strain LA5, sequence accession [25]
- Salmonella enterica subsp. enterica Serotype Senftenberg Strain SS209, sequence accession [ CAGQ0000000026]
- Salmonella enterica subsp. enterica Serovar Typhi P-stx-12, sequence accession (chromosome) and CP003278 (plasmid) [ CP00327927]
- Sphingomonas echinoides ATCC 14820, sequence accession [ AHIR0000000028]
- Strain HIMB55, sequence accession [ AGIF0000000029]
- Vibrio harveyi CAIM 1792, sequence accession [ AHHQ0000000030]
- Wolbachia Strain wAlbB, sequence accession [ CAGB01000001 to CAGB0100016531]
- Xanthomonas axonopodis pv. punicae Strain LMG 859, sequence accession [ CAGJ01000001 to CAGJ0100021732]
Phylum Tenericutes
- Mycoplasma hyorhinis Strain GDL-1, sequence accession [ CP00323133]
Phylum Firmicutes
- Bacillus subtilis, sequence accession BGSCID 3A27 through BGSCID 28A4 [34]
- Clostridium difficile Strain CD37, sequence accession [ AHJJ0000000035]
- Clostridium perfringens, sequence accession [ AFES0000000036]
- Lactobacillus fructivorans KCTC 3543, sequence accession [ AEQY0000000037]
- Lactococcus lactis IO-1, sequence accession [ AP01228138]
- Lactobacillus plantarum strain NC8, sequence accession [ AGRI0000000039]
- Paenibacillus dendritiformis C454, sequence accession [ AHKH0000000040]
- Paenibacillus sp. Strain Aloe-11, sequence accession [ AGFI0000000041]
- “Peptoniphilus rhinitidis” 1-13T, sequence accession [ BAEW01000001 to BAEW0100005642]
- Streptococcus macedonicus ACA-DC 198, sequence accession and HE613569 [ HE61357043]
- Staphylococcus aureus VC40, sequence accession [ CP00303344]
- Streptococcus infantarius subsp. infantarius Strain CJ18, sequence accession (chromosome), CP003295 (plasmid) [ CP00329645]
- Streptococcus macedonicus ACA-DC 198, sequence accession (chromosome), HE613569 (plasmid pSMA198) [ HE61357046]
Phylum Actinobacteria
- Actinoplanes sp. SE50/110, sequence accession [ CP00317047]
- Amycolatopsis sp. Strain ATCC 39116, sequence accession [48]
- Nocardia cyriacigeorgica GUH-2, sequence accession [ FO08284349]
- Salinibacterium sp., sequence accession [ AHWA0000000050]
- Streptomyces acidiscabies 84-104, sequence accession [ AHBF0000000051]
Non-Bacterial genomes
- Bluetongue Virus Serotype 2, sequence accession (Seg-6) and AJ783905 (Seg-1), JQ681257 (Seg-1), JQ681257 (Seg-2), JQ681258 (Seg-3), JQ681259 (Seg-4), JQ681260 (Seg-5), JQ681261 (Seg-7), JQ6812563 (Seg-8), JQ6812564 (Seg-9), to JQ681262 (Seg-10) [ JQ68126552]
- Virus Serotype 1, sequence accession (Seg-2), AJ585111 (Seg-6), AJ586659 (Seg-1), JQ282770 (Seg-3), JQ282771 (Seg-4), JQ282772 (Seg-5), JQ282773 (Seg-7), JQ282774 (Seg-8), JQ282775 (Seg-9), and JQ282776 (Seg-10) [ JQ28277752]
- Chloroplast genome of Erycina pusilla, sequence accession JF_746994 [53]
- Danio rerio, sequence accession [ JQ43410154]
- Enterococcal Bacteriophage SAP6, sequence accession [ JF73112855]
- Eubenangee virus, sequence accession through JQ070376 [ JQ07038556]
- Fujian/411-like viruses, sequence accession [ CY087969 to CY08856857]
- Hantavirus Variant of Rio Mamoré Virus, Maripa Virus, sequence accession (segment S), JQ611712 (segment M), and JQ611713 (segment L) [ JQ61171458]
- Pata virus, sequence accession through JQ070386 [ JQ07039559]
- Porcine Circovirus 2, sequence accession [ JQ41380860]
- Porcine Reproductive and Respiratory Syndrome Virus, sequence accession [ JQ32627161]
- Streptococcus mutans Phage M102AD, sequence accession [ DQ38616262]
- Tilligery virus, sequence accession through JQ070366 [ JQ07037563]
8.
Lavanya Rishishwar Lee S. Katz Nitya V. Sharma Lori Rowe Michael Frace Jennifer Dolan Thomas Brian H. Harcourt Leonard W. Mayer I. King Jordan 《Journal of bacteriology》2012,194(20):5649-5656
Containment strategies for outbreaks of invasive Neisseria meningitidis disease are informed by serogroup assays that characterize the polysaccharide capsule. We sought to uncover the genomic basis of conflicting serogroup assay results for an isolate () from a patient with acute meningococcal disease. To this end, we characterized the complete genome sequence of the M16917 isolate and performed a variety of comparative sequence analyses against N. meningitidis reference genome sequences of known serogroups. Multilocus sequence typing and whole-genome sequence comparison revealed that M16917 is a member of the ST-11 sequence group, which is most often associated with serogroup C. However, sequence similarity comparisons and phylogenetic analysis showed that the serogroup diagnostic capsule polymerase gene (synD) of M16917 belongs to serogroup B. These results suggest that a capsule-switching event occurred based on homologous recombination at or around the capsule locus of M16917. Detailed analysis of this locus uncovered the locations of recombination breakpoints in the M16917 genome sequence, which led to the introduction of an ∼2-kb serogroup B sequence cassette into the serogroup C genomic background. Since there is no currently available vaccine for serogroup B strains of N. meningitidis, this kind capsule-switching event could have public health relevance as a vaccine escape mutant. M16917相似文献
9.
Braarudosphaera bigelowii (Prymnesiophyceae) is a coastal coccolithophore with a long fossil record, extending back to the late Cretaceous (ca. 100 Ma). A recent study revealed close phylogenetic relationships between B. bigelowii, Chrysochromulina parkeae (Prymnesiophyceae), and a prymnesiophyte that forms a symbiotic association with the nitrogen-fixing cyanobacterium UCYN-A. In order to further examine these relationships, we conducted transmission electron microscopic and molecular phylogenetic studies of B. bigelowii. TEM studies showed that, in addition to organelles, such as the nucleus, chloroplasts and mitochondria, B. bigelowii contains one or two spheroid bodies with internal lamellae. In the 18S rDNA tree of the Prymnesiophyceae, C. parkeae fell within the B. bigelowii clade, and was close to B. bigelowii Genotype III (99.89% similarity). Plastid 16S rDNA sequences obtained from B. bigelowii were close to the unidentified sequences from the oligotrophic SE Pacific Ocean (e.g. ) (99.86% similarity). Bacterial16S rDNA sequences obtained from B. bigelowii were identical to the UCYN-A sequence HM133411 from Arabian Sea, and fell in the UCYN-A clade. From these results, we suggest that; 1) C. parkeae is the alternate life cycle stage of B. bigelowii sensu stricto or that of a sibling species of B. bigelowii, and 2) the spheroid body of B. bigelowii originated from endosymbiosis of the nitrogen-fixing cyanobacterium UCYN-A. AY621693相似文献
10.
The small chaperone protein Hsp27 confers resistance to apoptosis, and therefore is an attractive anticancer drug target. We report here a novel mechanism underlying the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) sensitizing activity of the small molecule , an inactive analog of the phosphoinositide 3-kinase inhibitor inhibitor LY303511, in HeLa cells that are refractory to TRAIL-induced apoptosis. On the basis of the fact that LY294002 is derived from LY303511, itself derived from quercetin, and earlier findings indicating that quercetin and LY294002 affected Hsp27 expression, we investigated whether LY294002 sensitized cancer cells to TRAIL via a conserved inhibitory effect on Hsp27. We provide evidence that upon treatment with LY303511, Hsp27 is progressively sequestered in the nucleus, thus reducing its protective effect in the cytosol during the apoptotic process. LY303511-induced nuclear translocation of Hsp27 is linked to its sustained phosphorylation via activation of p38 kinase and MAPKAP kinase 2 and the inhibition of PP2A. Furthermore, Hsp27 phosphorylation leads to the subsequent dissociation of its large oligomers and a decrease in its chaperone activity, thereby further compromising the death inhibitory activity of Hsp27. Furthermore, genetic manipulation of Hsp27 expression significantly affected the TRAIL sensitizing activity of LY303511, which corroborated the Hsp27 targeting activity of LY303511. Taken together, these data indicate a novel mechanism of small molecule sensitization to TRAIL through targeting of Hsp27 functions, rather than its overall expression, leading to decreased cellular protection, which could have therapeutic implications for overcoming chemotherapy resistance in tumor cells. LY303511相似文献
11.
12.
13.
Xiaolu Shi Yiman Lin Yaqun Qiu Yinghui Li Min Jiang Qiongcheng Chen Yixiang Jiang Jianhui Yuan Hong Cao Qinghua Hu Shenghe Huang 《PloS one》2016,11(3)
Proteus mirabilis is a common urinary tract pathogen, and may induce various inflammation symptoms. Its notorious ability to resist multiple antibiotics and to form urinary tract stones makes its treatment a long and painful process, which is further challenged by the frequent horizontal gene transferring events in P. mirabilis genomes. Three strains of P. mirabilis / C02011/C04013 were isolated from a local outbreak of a food poisoning event in Shenzhen, China. Our hypothesis is that new genes may have been acquired horizontally to exert the digestion tract infection and toxicity. The functional characterization of these three genomes shows that each of them independently acquired dozens of virulent genes horizontally from the other microbial genomes. The representative strain C04010 induces the symptoms of both vomit and diarrhea, and has recently acquired a complete type IV secretion system and digestion tract toxic genes from the other bacteria. C02011相似文献
14.
A novel isolate belonging to the genus Streptomyces, strain SL-4T, was isolated from soil sample collected from a sanitary landfill, New Delhi, India. The taxonomic status of this isolate was studied by polyphasic approach including morphological, physiological and chemo-taxonomic characterization. Spore chains of SL-4T were open loops, hooks or extended spirals of wide diameter (retinaculiperti). The cell wall peptidoglycan of the isolate SL-4T contained L,L-diaminopimelic acid, suggesting that the strain has a cell wall of chemotype-I. The polar lipid profile of the isolate was of Type II, with phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannosides. The 16SrRNA gene sequence similarity between SL-4T and its phylogenetic relatives Streptomyces atrovirens NRRLB 16357T (), S. albogriseolus NRRLB 1305T ( DQ026672), S viridodiastaticus NBRC 13106T ( AJ494865), S. caelestis NRRL 2418T ( AB184317), S. flavoviridis NBRC 12772T ( X80824), S. pilosus NBRC 12807T ( AB184842) and S. longispororuber NBRC 13488T ( AB184161) was 99.65, 99.65, 99.64, 99.23, 99.15, 99.14 and 99.13 % respectively. Subsequent DNA–DNA hybridization experiments with the test strain and its clade members showed 55.27, 44.27, 36.86, and 15.65 % relatedness between SL-4T and its relatives S. atrovirens,S. albogriseolus, S. viridodiastaticus and S. longispororuber respectively. The genotypic and phenotypic data was analyzed to verify possibility of the isolate SL-4T representing novel member of the genus Streptomyces, for which the name S. antibioticalis is being proposed. The type strain is SL-4T (=CCM 7434T=MTCC 8588T). AB184440相似文献
15.
Zhuo-Yang Zhang Chang Liu Yong-Zhang Zhu Yi Zhong Yong-Qiang Zhu Hua-Jun Zheng Guo-Ping Zhao Sheng-Yue Wang Xiao-Kui Guo 《Journal of bacteriology》2009,191(15):5020-5021
Lactobacillus plantarum is a lactic acid bacterium (LAB) species commonly used as a probiotic. We have sequenced the genome of Lactobacillus plantarum JDM1, which is a Chinese commercial LAB with several probiotic functions, using a GS 20 system. We recommend that each commercial probiotic strain should undergo complete genome sequencing to ensure safety and stability.Lactic acid bacteria (LAB) play a prominent role in the world food supply, performing the main bioconversions in fermented food, and are also used as probiotic supplements in dairy products and other foods. Lactobacillus plantarum is a LAB species commonly used as a probiotic. We have sequenced the genome of Lactobacillus plantarum JDM1, which is a widely used Chinese commercial LAB with several probiotic functions, using a GS 20 system (454 Life Science Corporation) (11). Two hundred thirty-six thousand, five hundred sixty-three high-quality reads were assembled with the 454 assembly tool, which had an average depth of 18.6-fold coverage of the genome and yielded 367 contigs. Among these, 225 large contigs represented 99.17% of the draft sequence. In the finishing process, the order of the selected large contigs was determined by BLAST analysis with the originally published genome sequence of strain WCFS1 (GenBank accession number ) ( AL9352638). Physical gaps were filled through sequencing of PCR products that spanned these regions using ABI 3730 xl DNA sequencers. Sequence assembly was accomplished by using the Phred/Phrap/Consed software package (4, 7). To ensure final accuracy, the errors in homopolymer sites that arose from the pyrosequencing method were solved via comparison with the corresponding sites on WCFS1 and then resequencing of the ambiguous bases using the ABI 3730 xl DNA sequencer.The complete genome of Lactobacillus plantarum JDM1 contains a single, circular chromosome of 3,197,759 bp and two plasmids (pLP2000 [2,062 bp] and pLP9000 [9,254 bp]). The two plasmids have been sequenced and published, with GenBank accession numbers and AY096004 ( AY0960053). The overall GC content of the chromosome is 44.66%, whereas the plasmids have a GC content slightly lower than that of the chromosome. The entire genome of JDM1 contains 2,948 protein-coding genes, 62 tRNA-encoding genes, and 16 rRNA-encoding genes. Several repeated sequences, designated ISP2, were found in the chromosome which were almost the same as those in WCSF1, identified as a class of transposase-encoding regions representing mobile genetic elements. The other repeated sequence, ISP1 of WCSF1, was absent in JDM1.The entire genomic sequence of L. plantarum JDM1 was a little shorter than that of L. plantarum WCSF1 (3.3 Mb). The two genomes were highly similar (>90% by BLASTN analysis) with respect to genome structure and gene order. Intraspecies diversity may be required for successful adaptation in a complex ecological habitat (2). L. plantarum JDM1 has been grown as a probiotic in rich nutritional medium for so long that the genome may have gradually contracted. As supporting evidence, many sugar transport and metabolism genes in WCFS1 were absent in JDM1.The prophage sequences and locations of JDM1 and WCFS1 are highly variable. L. plantarum JDM1 contains three prophage elements in its genome. R-Pg1, representing a short prophage remnant, is about 14 kb in size, which is similar to R-Lp3 in WCFS1. Pg2 and Pg3 are two ∼39-kb-long prophages that are closely related to Listeria phage B025 (accession no. ) and the phage Pediococcus pentosaceus ATCC 25745 (accession no. DQ003639), respectively.The genomes of LAB evolve actively to adapt to nutritionally rich environments. Even for two strains of the same species, differences obviously exist. The degradation of the genome appears to be an ongoing process not only in all species of Lactobacillus ( CP00042210) but also in different strains of the same species(2).With the development of better living conditions, the biosafety of food and medicine has received more attention. Lactobacillus bacteria have been supposed to have a “generally accepted as safe” status, but they still have been associated with negative reports (1, 6, 9). More about the functional mechanisms of JDM1 and potential side effects would be explored by complete genome sequencing and data mining. Furthermore, comparative genomics analysis could be carried out with Chinese and European strains. We believe the complete genome of each probiotic strain should be sequenced to ensure safety and stability. At the end of the day, we will get what we pay for in terms of microbial genome sequencing projects (5). 相似文献
16.
17.
Background
In Malaysia, researchers and medical practitioners are unfamiliar with Naegleria infections. Thus little is known about the existence of pathogenic Naegleria fowleri, and the resultant primary amoebic meningoencephalitis (PAM) is seldom included in the differential diagnosis of central nervous system infections. This study was conducted to detect the presence of Naegleria species in various environmental samples.Methods/Findings
A total of 41 Naegleria-like isolates were isolated from water and dust samples. All these isolates were subjected to PCR using two primer sets designed from the ITS1-ITS2 regions. The N. fowleri species-specific primer set failed to produce the expected amplicon. The Naegleria genus-specific primers produced amplicons of 408 bp (35), 450 bp (2), 457 bp (2) or 381 bp (2) from all 41 isolates isolated from aquatic (33) and dust (8) samples. Analysis of the sequences from 10 representative isolates revealed that amplicons with fragments 408, 450 and 457 bp showed homology with non-pathogenic Naegleria species, and 381 bp showed homology with Vahlkampfia species. These results concurred with the morphological observation that all 39 isolates which exhibited flagella were Naegleria, while 2 isolates (AC7, and AC8, JN034055) that did not exhibit flagella were Vahlkampfia species. JN034056Conclusion
To date, pathogenic species of N. fowleri have not been isolated from Malaysia. All 39 isolates that produced amplicons (408, 450 and 457 bp) from the genus-specific primers were identified as being similar to nonpathogenic Naegleria. Amplicon 408 bp from 5 representative isolates showed 100% and 99.7% identity to Naegleria philippinensis isolate RJTM () and is thus believed to be the most common species in our environment. Amplicons 450 bp and 457 bp were respectively believed to be from 2 new species of Naegleria, since representative isolates showed lower homology and had a longer base pair length when compared to the reference species in the Genbank, Naegleria schusteri ( AM167890) and Naegleria laresi ( AJ566626), respectively. AJ566630相似文献18.
The purpose of this table is to provide the community with a citable record of publications of ongoing genome sequencing projects that have led to a publication in the scientific literature. While our goal is to make the list complete, there is no guarantee that we may have omitted one or more publications appearing in this time frame. Readers and authors who wish to have publications added to this subsequent versions of this list are invited to provide the bibliometric data for such references to the SIGS editorial office.
- Phylum Crenarchaeota
- Phylum Euryarchaeota
- Pyrococcus yayanosii CH1, sequence accession [ CP0027791]
- Methanocella paludicola, sequence accession [ AP0115322]
- Halorhabdus tiamatea, sequence accession [ AFNT000000003]
- Thermococcus sp. Strain 4557, sequence accession [ CP0029204]
- Phylum Chloroflexi
- Phylum Proteobacteria
- Ralstonia solanacearum strain Po82, sequence accession (chromosome) and CP002819 (megaplasmid) [ CP0028205
- Desulfovibrio alaskensis G20, sequence accession [ CP0001126]
- Methylophaga aminisulfidivorans MPT, sequence accession [ AFIG000000007]
- Acinetobacter sp. P8-3-8, sequence accession [ AFIE000000008]
- Sphingomonas strain KC8, sequence accession [ AFMP010000009]
- Brucella pinnipedialis B2/94, sequence accession and CP002078 [ CP00207910]
- Salmonella enterica Serovar Typhimurium UK-1, sequence accession (chromosome), CP002614 (plasmid) [ CP00261511]
- Bordetella pertussis CS, sequence accession [ CP00269512]
- Alteromonas sp. Strain SN2, sequence accession [ CP00233913]
- Escherichia coli O104:H4, sequence accession ( AFOB00000000) and LB226692 (01-09591) [ AFPS0000000014]
- Acidithiobacillus caldus, sequence accession (Chromosome), CP002573 (pLAtcm), CP002574 (pLAtc1), CP002575 (pLAtc2), CP002576 (pLAtc3) [ CP00257715]
- Cupriavidus necator N-1, sequence accession (chromosome 1), CP002877 (chromosome 2), CP002878 (pBB1), and CP002879 (pBB2) [ CP00288016]
- Oligotropha carboxidovorans OM4, sequence accession (OM4 chromosome), CP002821 (pHCG3b), CP002822 (pOC167B) [ CP00282317]
- Oligotropha carboxidovorans OM5, sequence accession (OM5 chromosome), CP002826 (pHCG3), and CP002827 (pOC167) [17] CP002828
- Pantoea ananatis LMG20103, sequence accession [ CP00187518]
- Helicobacter bizzozeronii strain CIII-1, sequence accession (chromosome) and FR871757 (HBZ-1) [ FR87175819]
- Vibrio anguillarum 775, sequence accession [ CP002284 to CP00228520]
- Zymomonas mobilis subsp. pomaceae, sequence accession (chromosome), CP002865 (p29192_1), CP002866 (p29192_2) [ CP00286721]
- Agrobacterium sp. strain ATCC 31749, sequence accession [ AECL0100000022]
- Xanthomonas spp. strain Xrc, sequence accesssion [ CP00278923]
- Xanthomonas spp. strain Xoc, sequence accesssion [ AAQN0000000023]
- Glaciecola sp. Strain 4H-3-7+YE-5, sequence accession (chromosome) and CP002526 (plasmid) [ CP00252724]
- Escherichia coli Strain HM605, sequence accession through CADZ01000001 [ CADZ0100015425]
- Salinisphaera shabanensis, sequence accession [ AFNV0000000026]
- Methyloversatilis universalis FAM5T, sequence accession [ AFHG0000000027]
- Alicycliphilus denitrificans Strain BC, sequence accession (chromosome), CP002449 (megaplasmid), CP002450 (plasmid) [ CP00245128].
- Alicycliphilus denitrificans K601T, sequence accession (chromosome) and CP002657 (plasmid) [ CP00265828]
- Oligotropha carboxidovorans Strain OM4, sequence accession (chromosome), CP002821 (pHCG3b), CP002822 (pOC167B) [ CP00282329]
- Oligotropha carboxidovorans Strain OM5, sequence accession (chromosome), CP002826 (pHCG3), and CP002827 (pOC167) [ CP00282829]
- Bradyrhizobiaceae strain SG-6C, sequence accession [ AFOF0100000030]
- Hyphomicrobium sp. Strain MC1, sequence accession [ FQ85918131]
- Shewanella sp. Strain HN-41, sequence accession [ AFOZ0100000032]
- Myxococcus fulvus HW-1, sequence accession [ CP00283033]
- Nitrosomonas sp. Strain AL212, sequence accession (chromosome), NC_015222 pNAL21201), NC_015223 (pNAL21202) [ NC_01522134]
- Ruegeria sp. Strain KLH11, sequence accession [ ACCW0000000035]
- Acidovorax avenae subsp. avenae RS-1, sequence accession [ AFPT0100000036]
- Escherichia coli (ExPEC), sequence accession [ AFAT0000000037]
- Vibrio mimicus SX-4, sequence accession [ ADOO0100000038]
- Agrobacterium tumefaciens Strain F2, sequence accession [ AFSD0000000039]
- Pasteurella multocida subsp. gallicida [ AFRR01000001 to AFRR0100048940]
- Pseudomonas aeruginosa 138244, sequence accession [ AEVV0000000041]
- Pseudomonas aeruginosa 152504, sequence accession [ AEVW0000000041]
- Campylobacter jejuni strain 305, sequence accession [ ADHL0000000042]
- Campylobacter jejuni strain DFVF1099, sequence accession [ ADHK0000000042]
- Xanthomonas campestris pv. raphani strain 756C, sequence accession [ CP00278943]
- Xanthomonas campestris pv. raphani strain BLS256, sequence accession [ AAQN0100000143]
- Rickettsia heilongjiangensis, sequence accession [ CP00291244]
- Acidiphilium sp. Strain PM (DSM 24941), sequence accession [ AFPR0000000045]
- Pseudomonas putida Strain S16, sequence accession [ CP00287046]
- Acinetobacter lwoffii, sequence accession [ AFQY0100000047]
- Phylum Firmicutes
- Caldalkalibacillus thermarum strain TA2.A1, sequence accession [ AFCE0000000048]
- Listeria monocytogenes Scott A, sequence accession [ AFGI0000000049]
- Lactococcus garvieae 8831, sequence accession [ AFCD0000000050]
- Natranaerobius thermophilus JW/NM-WN-LF, sequence accession (chromosome), CP001034 (plasmid) [ CP00103551]
- Melissococcus plutonius ATCC 35311, sequence accession (chromosome) and AP012200 (plasmid) [ AP01220152]
- Lactobacillus buchneri NRRL B-30929, sequence accession (chromosome), CP002652 (plasmid pLBU01), CP002653 (plasmid pLBU02), and CP002654 (plasmid pLBU03) [ CP00265553]
- Lactobacillus kefiranofaciens ZW3 , sequence accession (chromosome), CP002764 (plasmid), and CP002765 (plasmid) [ CP00276654]
- Bacillus megaterium strain QM B1551, sequence accession (chromosome), CP001983 (plasmids pBM100 through pBM700) [ CP001984 to CP00199055]
- Bacillus megaterium strain DSM319, sequence accession (chromosome) [ CP00198255]
- Listeria monocytogenes serovar 4a strain M7, sequence accession [ CP00281656]
- Bacillus coagulans 2-6, sequence accession [ CP00247257]
- Streptococcus salivarius strain CCHSS3, sequence accession [ FR87348158]
- Paenibacillus elgii B69, sequence accession [ AFHW0100000059]
- Lactobacillus pentosus MP-10, sequence accession through FR871759 [ FR87184860]
- Leuconostoc pseudomesenteroides KCTC 3652, sequence accession AEOQ00000001 through AEOQ00001160 [61]
- Lactobacillus mali KCTC 3596, sequence accession through BACP01000001 [ BACP0100012262]
- Paenibacillus polymyxa Type Strain ATCC 842T, sequence accession [ AFOX0100000063]
- Streptococcus salivarius strain JIM8777, sequence accssion [ FR87348264]
- Lactobacillus cypricasei KCTC 13900, sequence accession [ BACS01000001 to BACS0100048765]
- Lactobacillus zeae KCTC 3804, sequence accession to BACQ101000113 [ BACQ0100000166]
- Listeria monocytogenes Serovar 4a Strain M7, sequence accession [ CP00281667]
- Lactobacillus salivarius GJ-24, sequence accession [ AFOI0000000068]
- Lactobacillus johnsonii PF01, sequence accession [ AFQJ0100000069]
- Clostridium acetobutylicum DSM 1731, sequence accession through CP002660 [ CP00266270]
- Lactobacillus suebicus KCTC 3549, sequence accession [ BACO0100000071]
- Brevibacillus laterosporus LMG 15441, sequence accession [ AFRV0000000072]
- Lactobacillus salivarius NIAS840, sequence accession [ AFMN0000000073]
- Bifidobacterium animalis subsp. lactis CNCM I-2494, sequence accession [ CP00291574]
- Megasphaera elsdenii, sequence accession [ HE57679475]
- Lactobacillus versmoldensis KCTC 3814, sequence accession [ BACR01000001 to BACR0100010276]
- Lactobacillus pentosus IG1, sequence accession [ FR874848 to FR87486077]
- Alicyclobacillus acidocaldarius Strain Tc-4-1, sequence accession [ CP00290278]
- Streptococcus thermophilus Strain JIM8232, sequence accession [ FR87517879]
- Streptococcus equi subsp. zooepidemicus Strain ATCC 35246, sequence accession [ CP00290480]
- Bacillus amyloliquefaciens XH7, sequence accession [ CP00292781]
- Leuconostoc kimchii Strain C2, sequence accession [ CP00289882]
- Lactobacillus malefermentans KCTC 3548, sequence accession [ BACN01000001 to BACN0100017283]
- Weissella koreensis KACC 15510, sequence accession [ CP00290084]
- Phylum Tenericutes
- Mycoplasma bovis Strain Hubei-1, sequence accession [ CP00251385]
- Mycoplasma fermentans Strain M64, sequence accession [ NC_01492186]
- Haloplasma contractile, sequence accession [ AFNU0000000087]
- Mycoplasma ovipneumoniae Strain SC01, sequence accession [ AFHO0100000088]
- Phylum Actinobacteria
- Kocuria rhizophila P7-4, sequence accession [ AFID0000000089]
- Streptomyces S4, sequence accession [ CADY0100000090]
- Corynebacterium nuruki S6-4T, sequence accession [ AFIZ0000000091]
- Propionibacterium humerusii, sequence accession [ AFAM00000000.192]
- Strain JDM601, sequence accession [ CP00232993]
- Streptomyces sp. strain Tü6071, sequence accession [ AFHJ0100000094]
- Bifidobacterium breve UCC2003, sequence accession [ CP00030395]
- Propionibacterium acnes, sequence accession [ CP00281596]
- Amycolicicoccus subflavus DQS3-9A1T, sequence accession (chromosome), CP002786 (plasmid pAS9A-1), and CP002787 (plasmid pAS9A-2). [ CP00278897]
- Gordonia neofelifaecis NRRL B-59395, sequence accession [ AEUD0100000098]
- Pseudonocardia dioxanivorans strain CB1190, sequence accession NC_015312-4 and CP002595-7 [99]
- Bifidobacterium longum subsp. longum KACC 91563, sequence accession [ CP002794 to CP002796100]
- Streptomyces cattleya NRRL 8057, sequence accession (chromosome) and FQ859185 (megaplasmid) [ FQ859184101]
- Rhodococcus sp. Strain R04, sequence accession [ AFAQ01000000102]
- Mycobacterium bovis BCG Moreau, sequence accession [103]
- Saccharopolyspora spinosa NRRL 18395, sequence accession [104]
- Mycobacterium tuberculosis CCDC5079, sequence accession [105]
- Mycobacterium tuberculosis CCDC5180, sequence accession [105]
- Amycolatopsis mediterranei S699, sequence accession [ CP002896106]
- Nesterenkonia sp. Strain F, sequence accession [ AFRW01000000107]
- Streptomyces xinghaiensis NRRL T, sequence accession B24674 [ AFRP01000000108]
- Phylum Chlamydiae
- Chlamydophila abortus variant strain LLG, sequence accession [ AFHM01000000109]
- Chlamydia psittaci 6BC, sequence accession (chromosome), CP002586 (plasmid) [ CP002587110]
- Chlamydia psittaci Cal10, sequence accession (draft chromosome and plasmid) [ AEZD00000000110]
- Chlamydia trachomatis, sequence accession [ CP002024111]
- Phylum Spirochaetes
- Spirochaeta thermophila DSM 6192, sequence accession [ CP001698112]
- Brachyspira intermedia, sequence accession (chromosome) and CP002874 (plasmid) [ CP002875113]
- Phylum Fibrobacteres
- Phylum Bacteroidetes
- Porphyromonas gingivalis TDC60, sequence accession [ AP012203114]
- Krokinobacter sp. strain 4H-3-7-5, sequence accession [ CP002528115]
- Lacinutrix sp. strain 5H-3-7-4, sequence accession [ CP002825115]
- Bacterium HQM9, sequence accession [ AFPB00000000116]
- Anaerophaga sp. Strain HS1, sequence accession [ AFSL00000000117]
- Capnocytophaga canimorsus Strain 5, sequence accession [ CP002113118]
- Mesoflavibacter zeaxanthinifaciens strain S86, sequence accession [ AFOE00000000119]
- Phylum Verrucomicrobia
- Phylum Lentisphaerae
- Phylum Thermotogae
- Kosmotoga olearia Strain TBF 19.5.1, sequence accession [ CP001634120]
- Domain Archaea
- "Candidatus Nitrosoarchaeum koreensis" MY1, sequence accession [ AFPU00000000121]
Non-Bacterial genomes
- North-European Cucumber Cucumis sativus L., sequence accession , FI132140-FI136208, GS765762-GS766880 [ GS815969-GS874855122]
- Castor bean Ricinus communis organelle genome, sequence accession (chloroplast), JF937588 (mitochondria) [ HQ874649123]
- Stretch Lagoon Orbivirus Umatilla, sequence accession through HQ842619 [ HQ842628124]
- Atlantic cod Gadus morhua, sequence accession through CAEA01000001 [ CAEA01554869125]
- Potato Solanum tuberosum L., sequence accession through GS025503 [ GS026177126]
- ΦCA82, sequence accession [ HQ264138127]
- Paramecium caudatumreveals mitochondria, sequence accession NC001324 [128]
- bacteriophage IME08, sequence accession [ NC_014260129]
- virus (ILTV), sequence accession HQ_630064 [130]
- Australian kangaroo Macropus eugenii, sequence accession [ ABQO000000000131]
- Aichi virus, sequence accession [ FJ890523132]
- "Candidatus Tremblaya princeps" Strain PCVAL, sequence accession [ CP002918133]
19.
Enrico Lavezzo Stefano Toppo Luisa Barzon Claudio Cobelli Barbara Di Camillo Francesca Finotello Elisa Franchin Denis Peruzzo Gianna Maria Toffolo Marta Trevisan Giorgio Palù 《Journal of bacteriology》2010,192(19):5270-5271
Neisseria meningitidis is a human-specific pathogen known for its capability to cause sepsis and meningitis. Here we report the availability of 2 draft genome sequences obtained from patients infected during the same epidemic outbreak. Both bacterial isolates belong to serogroup C, but their genome sequences show local and remarkable differences compared with each other or with the reference genome of strain FAM18.Neisseria meningitidis is found as a commensal organism of the human nasopharynx in 8 to 25% of the adult population (9), but sporadically, it is able to cross the mucosa and reach the bloodstream, causing severe septicemia and meningitis. Even though the reasons triggering these pathogenic outbreaks are not well understood, several factors related either to the host or the bacterium have been proposed 3, 8).So far, complete genome sequences for N. meningitidis serogroups A (strain Z2491 [GenBank accession no. ]) ( AL1579594), B (strain MC58 [GenBank accession no. ]) ( AE00209810), and C (strains FAM18, 8013, and 053442 [GenBank accession no. , AM421808, and FM999788, respectively]) ( CP0003811, 5, 6) have been reported, together with the unencapsulated strain α14 (GenBank accession no. ) ( AM8891367). Here we announce the availability of 2 draft genome sequences for N. meningitidis serogroup C, strains K1207 and S0108, isolated from the same epidemic cluster which occurred in the Veneto region in northern Italy during the 2007-2008 winter (2).The genomes were sequenced using 454 pyrosequencing (Roche), combining shotgun and 30-kb paired-end strategies, according to the manufacturer''s recommendations. The coverage was nearly 27×, and assemblies were performed with Newbler. We obtained 223 and 226 contigs for the 2 genomes, which were finally mapped in 17 and 16 scaffolds, respectively. From both samples, we also isolated a 7-kb plasmid, whose sequence was nearly identical to that of pJS-B, already available in GenBank (accession no. ).The first analysis was performed by comparing sequences of the two isolates with the most similar complete genome available, strain FAM18. This analysis showed that the genome lengths were almost identical (about 2.2 Mb) and GC contents were comparable (51.91% in both isolates versus 51.62% of strain FAM18). Then, to identify potential differences in coding sequence content, the contigs obtained for both isolates were aligned with those for strain FAM18 using MEGABLAST ( NC_00475811) and LASTZ tools, which showed that in the genomes of the two N. meningitidis isolates, several genes were missing or nonfunctional because of the presence of insertions or deletions. For example, a couple of FAM18 outer membrane proteins (NMC0214 and NMC0215) were completely missing in both genomes, due to a 3-kb deletion, and no homologues were present in other genomic regions.Sequences that did not map on the genome of strain FAM18 were investigated by performing a BLAST analysis on a nonredundant database. Interestingly, besides genes or partial genes belonging to the other completely sequenced N. meningitidis serogroup C strain 053442, the genomes of our isolates contained coding sequences from N. meningitidis serogroups A and B, from other Neisseria species, such as N. gonorrhoeae, N. cinerea, and N. mucosa, and even from other bacterial species, such as cobyrinic acid ac-diamide synthase from Shewanella baltica, attesting once more to the great capability of horizontal gene transfer, which is peculiar to this microorganism.A detailed report of our two isolates will be included in a future publication, with the results of a full comparative analysis between the genomes. 相似文献