Tsai H Y, Masquida B, Biswas R, Westhof E, Gopalan V
Molecular modeling of the three-dimensional structure of the bacterial RNase P holoenzyme Article de journal
Dans: J Mol Biol, vol. 325, no. 4, p. 661-675, 2003, ISBN: 12507471, (0022-2836 Journal Article).
Résumé | Liens | BibTeX | Étiquettes: Amino Acid Sequence Base Sequence Catalytic Domain Computer Simulation Cysteine/chemistry DNA Footprinting DNA, Bacterial/chemistry/genetics/metabolism RNA, Bacterial/genetics Edetic Acid Endoribonucleases/*chemistry/genetics/metabolism Escherichia coli/*enzymology/genetics Evolution, Catalytic/*chemistry/genetics/metabolism Ribonuclease P Support, Molecular Ferrous Compounds Holoenzymes/chemistry/genetics/metabolism Hydroxyl Radical/chemistry Models, Molecular Molecular Sequence Data Mutagenesis, Non-P.H.S. Support, P.H.S., Site-Directed Nucleic Acid Conformation Protein Subunits RNA, U.S. Gov't, Unité ARN, WESTHOF
@article{,
title = {Molecular modeling of the three-dimensional structure of the bacterial RNase P holoenzyme},
author = {H Y Tsai and B Masquida and R Biswas and E Westhof and V Gopalan},
url = {http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12507471},
isbn = {12507471},
year = {2003},
date = {2003-01-01},
journal = {J Mol Biol},
volume = {325},
number = {4},
pages = {661-675},
abstract = {Bacterial ribonuclease P (RNase P), an enzyme involved in tRNA maturation, consists of a catalytic RNA subunit and a protein cofactor. Comparative phylogenetic analysis and molecular modeling have been employed to derive secondary and tertiary structure models of the RNA subunits from Escherichia coli (type A) and Bacillus subtilis (type B) RNase P. The tertiary structure of the protein subunit of B.subtilis and Staphylococcus aureus RNase P has recently been determined. However, an understanding of the structure of the RNase P holoenzyme (i.e. the ribonucleoprotein complex) is lacking. We have now used an EDTA-Fe-based footprinting approach to generate information about RNA-protein contact sites in E.coli RNase P. The footprinting data, together with results from other biochemical and biophysical studies, have furnished distance constraints, which in turn have enabled us to build three-dimensional models of both type A and B versions of the bacterial RNase P holoenzyme in the absence and presence of its precursor tRNA substrate. These models are consistent with results from previous studies and provide both structural and mechanistic insights into the functioning of this unique catalytic RNP complex.},
note = {0022-2836
Journal Article},
keywords = {Amino Acid Sequence Base Sequence Catalytic Domain Computer Simulation Cysteine/chemistry DNA Footprinting DNA, Bacterial/chemistry/genetics/metabolism RNA, Bacterial/genetics Edetic Acid Endoribonucleases/*chemistry/genetics/metabolism Escherichia coli/*enzymology/genetics Evolution, Catalytic/*chemistry/genetics/metabolism Ribonuclease P Support, Molecular Ferrous Compounds Holoenzymes/chemistry/genetics/metabolism Hydroxyl Radical/chemistry Models, Molecular Molecular Sequence Data Mutagenesis, Non-P.H.S. Support, P.H.S., Site-Directed Nucleic Acid Conformation Protein Subunits RNA, U.S. Gov't, Unité ARN, WESTHOF},
pubstate = {published},
tppubtype = {article}
}