Sandbox Reserved 553
This Sandbox is Reserved from 05/22/2012, through 07/22/2012 for use in the course "BIOL 414" taught by Greg Buhrman at the North Carolina State University, Raleigh, NC USA. This reservation includes Sandbox Reserved 551 through Sandbox Reserved 590. |
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Hi Alex, Here is your very own Protopedia page for pdb code: 2WDK. Your presentation date is scheduled for: June 11.
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Greg Buhrman

STRUCTURE OF THE THERMUS THERMOPHILUS 70S RIBOSOME IN COMPLEX WITH MRNA, PAROMOMYCIN, ACYLATED A- AND P-SITE TRNAS, AND E-SITE TRNA. THIS FILE CONTAINS THE 30S SUBUNIT A-,P-, AND E-SITE TRNAS AND PAROMOMYCIN FOR MOLECULE I.STRUCTURE OF THE THERMUS THERMOPHILUS 70S RIBOSOME IN COMPLEX WITH MRNA, PAROMOMYCIN, ACYLATED A- AND P-SITE TRNAS, AND E-SITE TRNA. THIS FILE CONTAINS THE 30S SUBUNIT A-,P-, AND E-SITE TRNAS AND PAROMOMYCIN FOR MOLECULE I.
Protein synthesis is catalyzed in the peptidyl transferase center (PTC), located in the large (50S) subunit of the ribosome. No high-resolution structure of the intact ribosome has contained a complete active site including both A- and P-site tRNAs. In addition, although past structures of the 50S subunit have found no ordered proteins at the PTC, biochemical evidence suggests that specific proteins are capable of interacting with the 3' ends of tRNA ligands. Here we present structures, at 3.6-A and 3.5-A resolution respectively, of the 70S ribosome in complex with A- and P-site tRNAs that mimic pre- and post-peptidyl-transfer states. These structures demonstrate that the PTC is very similar between the 50S subunit and the intact ribosome. They also reveal interactions between the ribosomal proteins L16 and L27 and the tRNA substrates, helping to elucidate the role of these proteins in peptidyl transfer.
Insights into substrate stabilization from snapshots of the peptidyl transferase center of the intact 70S ribosome., Voorhees RM, Weixlbaumer A, Loakes D, Kelley AC, Ramakrishnan V, Nat Struct Mol Biol. 2009 May;16(5):528-33. Epub 2009 Apr 12. PMID:19363482
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this StructureAbout this Structure
2wdk is a 25 chain structure of Ribosomal protein S10, Ribosomal protein S11, Ribosomal protein S12, Ribosomal protein S13, Ribosomal protein S15, Ribosomal protein S17, Ribosomal protein S2, Ribosomal protein S20, Ribosomal protein S3, Ribosomal protein S4, Ribosomal protein THX and Ribosome with sequence from Escherichia coli and Thermus thermophilus. The January 2010 RCSB PDB Molecule of the Month feature on 70S Ribosomes by David Goodsell is 10.2210/rcsb_pdb/mom_2010_1. Full crystallographic information is available from OCA.
See AlsoSee Also
ReferenceReference
- ↑ Voorhees RM, Weixlbaumer A, Loakes D, Kelley AC, Ramakrishnan V. Insights into substrate stabilization from snapshots of the peptidyl transferase center of the intact 70S ribosome. Nat Struct Mol Biol. 2009 May;16(5):528-33. Epub 2009 Apr 12. PMID:19363482 doi:10.1038/nsmb.1577