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1.
A new species, Dasymaschalon tibetense, has been described from South Tibet, China. The species is related to D. rostratum, but can be easily distinguished by its rounded apex of fruitlets and its 7.7–9.5 cm long petals. 相似文献
2.
Kumari Anjali Ameri Shijin Ravikrishna Palavancha Dhayalan Arul Kamala-Kannan S. Selvankumar T. Govarthanan M. 《International journal of peptide research and therapeutics》2020,26(2):1051-1059
International Journal of Peptide Research and Therapeutics - Marine snails are abundant sources of biologically important conopeptides with their potential applications in drug development. The... 相似文献
3.
Kumari Anjali Ameri Shijin Marraiki Najat Elgorban Abdallah M. Aroulmoji Vincent Ponnuchamy Kumar Govarthanan Muthusamy Selvankumar Thangaswamy 《International journal of peptide research and therapeutics》2021,27(1):385-395
International Journal of Peptide Research and Therapeutics - The conopeptides are the conotoxin of Conus loroisii have wide applications in drug development. This work emphasizes the isolation and... 相似文献
4.
Shijin Tang Yinping Pan Deshuai Lou Shunlin Ji Liancai Zhu Jun Tan Na Qi Qiong Yang Zhi Zhang Biling Yang Wenyan Zhao Bochu Wang 《Protein science : a publication of the Protein Society》2019,28(5):910-919
7α‐Hydroxysteroid dehydrogenase (7α‐HSDH) is an NAD(P)H‐dependent oxidoreductase belonging to the short‐chain dehydrogenases/reductases. In vitro, 7α‐HSDH is involved in the efficient biotransformation of taurochenodeoxycholic acid (TCDCA) to tauroursodeoxycholic acid (TUDCA). In this study, a gene encoding novel 7α‐HSDH (named as St‐2‐1) from fecal samples of black bear was cloned and heterologously expressed in Escherichia coli. The protein has subunits of 28.3 kDa and a native size of 56.6 kDa, which suggested a homodimer. We studied the relevant properties of the enzyme, including the optimum pH, optimum temperature, thermal stability, activators, and inhibitors. Interestingly, the data showed that St‐2‐1 differs from the 7α‐HSDHs reported in the literature, as it functions under acidic conditions. The enzyme displayed its optimal activity at pH 5.5 (TCDCA). The acidophilic nature of 7α‐HSDH expands its application environment and the natural enzyme bank of HSDHs, providing a promising candidate enzyme for the biosynthesis of TUDCA or other related chemical entities. 相似文献
5.
Han Feng Liu Liping Lu Jiaxi Chai Yingjuan Zhang Jie Wang Shijin Sun Licui Wang Qin Liu Yiqun He Mengjie Mu Weipeng Huang Zhenwu 《Biological trace element research》2019,188(2):363-372
Biological Trace Element Research - The required selenium intake for optimal health in Chinese residents was published in 2014. However, the adequate intake (AI) value for Chinese infants... 相似文献
6.
Qian Xu Ruihua Zhang Linlin Chen Lei Yang Jingxin Li Pengfei Dou Hui Wang Zhijing Xie Yu Wang Shijin Jiang 《Journal of virology》2012,86(24):13848
We report here the complete genome sequence of a novel duck hepatitis A virus type 3 (DHAV-3) isolated from a dead Cherry Valley duckling in eastern China. The whole genomic nucleotide sequence and polyprotein amino acid sequence of the virus had higher homology with those of Chinese DHAV-3 isolates, medium homology with those of Korean DHAV-3 isolates, and the lowest homology with those of Vietnamese isolate DN2. The result indicated that the genetic evolution of DHAV-3 isolates had obvious geographical features. 相似文献
7.
Mengjiao Zhao Zhen Sun Yue Zhang Guisheng Wang Hui Wang Fangfang Yang Fulin Tian Shijin Jiang 《Journal of virology》2012,86(24):13858-13859
In early 2012, a widespread porcine epidemic diarrhea virus (PEDV) occurred in eastern China. A cell-adapted isolate, SD-M, was at the four-passage level of virulent field strain SD, which was isolated from a 2-day-old dead suckling piglet that had suffered from severe diarrhea in Shandong Province, China. We report here the complete genome sequence of SD-M. This sequence will promote a better understanding of the molecular pathogenesis of PEDV. 相似文献
8.
With density function theory BLYP/DNP method, together with homodesmotic reactions and isodesmic reactions, we calculated
the resonance energies of some explosives, including eight nitro compounds which contains benzene rings, three nitro compounds
which contains azaheterocycles (2,4-dinitroimidazole (2,4-DNI), 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) and 2,4,6-trinitro-1,3,5-triazine)
and one nitrogen-rich energetic compound of 3,3’-azobis(6-amino-s-tetrazine) (DAAT). The results indicate that their resonance
energies are in relation to their shock sensitivity which measuring their threshold pressures of initiation, that is, the
lower the resonance energy is, the higher the shock sensitivity of the explosive behaves. And this measuring method according
to resonance energy is based on the global property of the molecule instead of the local one, such as one nitro group in the
molecule. It is meaningful to calculate resonance energies of these kind of compounds quickly and accurately because resonance
structures exist widely in these organic compounds and resonance energies may play a significant role in determining their
shock sensitivity, and it is helpful in the rational design or synthesis of high energy and insensitive materials. 相似文献
9.
运用ELISA快速检测CPV抗体方法的建立与均衡性研究 总被引:3,自引:0,他引:3
用蔗糖密度梯度离心和凝胶层析纯化犬细小病毒 (CPV)作抗原 ,建立了检测CPV抗体的间接酶联免疫吸附试验 (ELISA)法 ,其特异性和稳定性良好 ,结果判定准确明显 ,易于把握。 相似文献
10.
Mujahid Iqbal Hui Zhang Khalid Mehmood Aoyun Li Xiong Jiang Yaping Wang Jialu Zhang Muhammad Kashif Iqbal Mujeeb Ur Rehman Wangyuan Yao Shijin Yang Jiakui Li 《Biological procedures online》2018,20(1):15