Réponses antivirales chez le moustique Aedes

@article{,

title = {Recognition of tRNALeu by Aquifex aeolicus leucyl-tRNA synthetase during the aminoacylation and editing steps},

author = {P Yao and B Zhu and S Jaeger and G Eriani and E D Wang},

url = {http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=18367476},

isbn = {18367476},

year  = {2008},

date = {2008-01-01},

journal = {Nucleic Acids Res},

volume = {36},

number = {8},

pages = {2728-2738},

abstract = {Recognition of tRNA by the cognate aminoacyl-tRNA synthetase during translation is crucial to ensure the correct expression of the genetic code. To understand tRNA(Leu) recognition sets and their evolution, the recognition of tRNA(Leu) by the leucyl-tRNA synthetase (LeuRS) from the primitive hyperthermophilic bacterium Aquifex aeolicus was studied by RNA probing and mutagenesis. The results show that the base A73; the core structure of tRNA formed by the tertiary interactions U8-A14, G18-U55 and G19-C56; and the orientation of the variable arm are critical elements for tRNA(Leu) aminoacylation. Although dispensable for aminoacylation, the anticodon arm carries discrete editing determinants that are required for stabilizing the conformation of the post-transfer editing state and for promoting translocation of the tRNA acceptor arm from the synthetic to the editing site.},

note = {1362-4962 (Electronic) 

Journal Article 

Research Support, Non-U.S. Gov't},

keywords = {Amino Acids/chemistry Anticodon/chemistry Bacteria/enzymology/genetics Base Sequence Iodine Leucine-tRNA Ligase/chemistry/*metabolism Molecular Sequence Data Mutagenesis Nucleic Acid Conformation Protein Footprinting RNA, ERIANI, Leu/*chemistry/genetics/metabolism  Ribonucleases  Substrate Specificity  *Transfer RNA Aminoacylation, Transfer, Unité ARN},

pubstate = {published},

tppubtype = {article}

}