1gtr
STRUCTURAL BASIS OF ANTICODON LOOP RECOGNITION BY GLUTAMINYL-TRNA SYNTHETASE
|
OverviewOverview
The refined crystal structure of Escherichia coli glutaminyl transfer RNA, synthetase complexed with transfer RNA(Gln) and ATP reveals that the, structure of the anticodon loop of the enzyme-bound tRNA(Gln) differs, extensively from that of the known crystal structures of uncomplexed tRNA, molecules. The anticodon stem is extended by two non-Watson-Crick base, pairs, leaving the three anti-codon bases unpaired and splayed out to bind, snugly into three separate complementary pockets in the protein. These, interactions suggest that the entire anticodon loop provides essential, sites for glutaminyl tRNA synthetase discrimination among tRNA molecules.
About this StructureAbout this Structure
1GTR is a Single protein structure of sequence from Escherichia coli with ATP as ligand. The following page contains interesting information on the relation of 1GTR with [Aminoacyl-tRNA Synthetases]. Active as Glutamine--tRNA ligase, with EC number 6.1.1.18 Full crystallographic information is available from OCA.
ReferenceReference
Structural basis of anticodon loop recognition by glutaminyl-tRNA synthetase., Rould MA, Perona JJ, Steitz TA, Nature. 1991 Jul 18;352(6332):213-8. PMID:1857417
Page seeded by OCA on Sun Nov 18 09:01:06 2007