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911.
Gopal K. Khuller Kasinathan Chinnaswamy Reeta Taneja Nalini Penumarti Vinay S. Bansal 《Current microbiology》1982,7(1):49-51
Enzymes of phospholipid synthesis were studied inMycobacterium smegmatis ATCC 607 grown at 37 and 27°C. The synthesis seemed to be regulated, at least partly, at the phosphatidic acid level by the specificity of the acyltransferases. The individual phospholipid species were found to be regulated at the enzymatic level in the maintenance of membrane fluidity. 相似文献
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916.
Cauchie Henry-Michel Murugan Gopal Thomé Jean-Pierre Dumont Henri J. 《Hydrobiologia》1997,359(1-3):223-228
Chitin was assayed in adults of nine anostracan species (Streptocephalus dichotomus, S. proboscideus, S. simplex, S. torvicornis,
Thamnocephalus platyurus, Dendrocephalus brasiliensis, Chirocephalus diaphanus, Artemia salina and Branchipus schaefferi)
using a highly specific enzymatic method. Cysts of A. salina, T. platyurus and larvae of A. salina and S. simplex were also
analysed for their chitin content. The results demonstrated a weak interspecific variation in chitin content among the adults.
On the whole, it ranged from 9 to 33 mg chitin (g dry mass)−1. In most species, the chitin level was not significantly different between males and females. In contrast, chitin levels
varied significantly between cysts, larvae and adults within species. Comparison of the chitin content of anostracans revealed
a comparable or lower chitin level than other crustaceans.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
917.
Varshasnata Mohanty Yashwanth Subbannayya Shankargouda Patil Vinuth N. Puttamallesh Mohd. Altaf Najar Keshava K. Datta Sneha M. Pinto Sameera Begum Neeta Mohanty Samapika Routray Riaz Abdulla Jay Gopal Ray David Sidransky Harsha Gowda T. S. Keshava Prasad Aditi Chatterjee 《Journal of cell communication and signaling》2021,15(3):447
918.
Peristylus sahanii (Orchidaceae), a new species from Jharkhand state (Chotanagpur plateau), India is described and illustrated. 相似文献
919.
V Gopal L G Brieba R Guajardo W T McAllister R Sousa 《Journal of molecular biology》1999,290(2):411-431
We have characterized the roles of the phage T7 RNA polymerase (RNAP) thumb subdomain and the RNA binding activity of the N-terminal domain in elongation complex (EC) stability by evaluating how disrupting these structures affects the dissociation rates of halted ECs. Our results reveal distinct roles for these elements in EC stabilization. On supercoiled or partially single-stranded templates the enzyme with a deletion of the thumb subdomain is exceptionally unstable. However, on linear duplex templates the polymerase which has been proteolytically cleaved within the N-terminal domain is the most unstable. The differences in the effects of these RNAP modifications on the stability of ECs on the different templates appear to be due to differences in EC structure: on the linear duplex templates the RNA is properly displaced from the DNA, but on the supercoiled or partially single-stranded templates an extended RNA:DNA hybrid makes a larger contribution to the conformational state of the EC. The halted EC can therefore exist either in a conformation in which the RNA is displaced from the DNA and forms an interaction with the RNAP, or in a conformation in which a more extended RNA:DNA hybrid is present and the RNA:RNAP interaction is less extensive. The partitioning between these competing conformations appears to be a function of the energetics of template reannealing and the relative strengths of the RNA:RNAP interaction and the RNA:DNA hybrid. 相似文献
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