This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1b75
From Proteopedia
Revision as of 03:11, 7 August 2014 by OCA (Talk | contribs)
1b75 is a 1 chain structure with sequence from Escherichia coli. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The structure of the Escherichia coli ribosomal protein L25 has been determined to an r.m.s. displacement of backbone heavy atoms of 0.62 +/- 0.14 A by multi-dimensional heteronuclear NMR spectroscopy on protein samples uniformly labeled with 15N or 15N/13C. L25 shows a new topology for RNA-binding proteins consisting of a six-stranded beta-barrel and two alpha-helices. A putative RNA-binding surface for L25 has been obtained by comparison of backbone 15N chemical shifts for L25 with and without a bound cognate RNA containing the eubacterial E-loop that is the site for binding of L25 to 5S ribosomal RNA. Sequence comparisons with related proteins, including the general stress protein, CTC, show that the residues involved in RNA binding are highly conserved, thereby providing further confirmation of the binding surface. Tertiary structure comparisons indicate that the six-stranded beta-barrels of L25 and of the tRNA anticodon-binding domain of glutaminyl-tRNA synthetase are similar.
The NMR structure of Escherichia coli ribosomal protein L25 shows homology to general stress proteins and glutaminyl-tRNA synthetases.,Stoldt M, Wohnert J, Gorlach M, Brown LR EMBO J. 1998 Nov 2;17(21):6377-84. PMID:9799245[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑ Stoldt M, Wohnert J, Gorlach M, Brown LR. The NMR structure of Escherichia coli ribosomal protein L25 shows homology to general stress proteins and glutaminyl-tRNA synthetases. EMBO J. 1998 Nov 2;17(21):6377-84. PMID:9799245 doi:10.1093/emboj/17.21.6377
