共查询到20条相似文献,搜索用时 46 毫秒
1.
2.
3.
4.
5.
Transcription products from the rplKAJL-rpoBC gene cluster 总被引:12,自引:0,他引:12
6.
Transcriptional initiation and processing of the small ribosomal RNA of yeast mitochondria 总被引:13,自引:0,他引:13
T Christianson J Edwards D Levens J Locker M Rabinowitz 《The Journal of biological chemistry》1982,257(11):6494-6500
7.
8.
9.
10.
Intermolecular base-paired interaction between complementary sequences present near the 3'' ends of 5S rRNA and 18S (16S) rRNA might be involved in the reversible association of ribosomal subunits. 总被引:6,自引:6,他引:0
下载免费PDF全文
![点击此处可从《Nucleic acids research》网站下载免费的PDF全文](/ch/ext_images/free.gif)
A A Azad 《Nucleic acids research》1979,7(7):1913-1929
Highly conserved sequences present at an identical position near the 3' ends of eukaryotic and prokaryotic 5S rRNAs are complementary to the 5' strand of the m2(6)A hairpin structure near the 3' ends of 18S rRNA and 16S rRNA, respectively. The extent of base-pairing and the calculated stabilities of the hybrids that can be constructed between 5S rRNAs and the small ribosomal subunit RNAs are greater than most, if not all, RNA-RNA interactions that have been implicated in protein synthesis. The existence of complementary sequences in 5S rRNA and small ribosomal subunit RNA, along with the previous observation that there is very efficient and selective hybridization in vitro between 5S and 18S rRNA, suggests that base-pairing between 5S rRNA in the large ribosomal subunit and 18S (16S) rRNA in the small ribosomal subunit might be involved in the reversible association of ribosomal subunits. Structural and functional evidence supporting this hypothesis is discussed. 相似文献
11.
12.
13.
Escherichia coli 16S rRNA 3''-end formation requires a distal transfer RNA sequence at a proper distance. 总被引:2,自引:0,他引:2
下载免费PDF全文
![点击此处可从《The EMBO journal》网站下载免费的PDF全文](/ch/ext_images/free.gif)
The 16S rRNA species in bacterial precursor rRNAs is followed by two evolutionarily conserved features: (i) a double-stranded stem formed by complementary sequences adjacent to the 5' and 3' ends of the 16S rRNA; and (ii) a 3'-transfer RNA sequence. To assess the possible role of these features, plasmid constructs with precursor-specific features deleted were tested for their capacity to form mature rRNA. Stem-forming sequences were dispensable for both 5' and 3' terminus formation; whereas an intact spacer tRNA positioned greater than 24 nucleotides downstream of the 16S RNA sequence was required for correct 3'-end maturation. These results suggest that spacer tRNA at an appropriate location helps form a conformation obligate for pre-rRNA processing, perhaps by binding to a nascent binding site in preribosomes. Thus, spacer tRNAs may be an obligate participant in ribosome formation. 相似文献
14.
The nucleotide sequence of 5.8S rRNA from the posterior silk gland of the silkworm Philosamia cynthia ricini. 总被引:2,自引:2,他引:0
下载免费PDF全文
![点击此处可从《Nucleic acids research》网站下载免费的PDF全文](/ch/ext_images/free.gif)
The nucleotide sequence of 5.8S rRNA from the Chinese silkworm Philosamia cynthia ricini has been determined by gel sequencing and mobility shift methods. The complete primary structure is (sequence in text). This is one of the largest known 5.8S rRNAs. As compared to Bombyx 5.8S rRNA, it is two nucleotides longer; two nucleotides near the 5'end and two nucleotides near the 3'end are different, and psi 61 of the Bombyx RNA sequence is an unmodified U in Philosamia RNA. The secondary structure of Philosamia 5.8S rRNA may differ from the Bombyx RNA structure by three additional base pairs at the 5'/3' ends. 相似文献
15.
16.
17.
18.
19.
20.