2qex is a 30 chain structure with sequence from Haloarcula marismortui. Full crystallographic 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
Negamycin, a small-molecule inhibitor of protein synthesis, binds the Haloarcula marismortui 50S ribosomal subunit at a single site formed by highly conserved RNA nucleotides near the cytosolic end of the nascent chain exit tunnel. The mechanism of antibiotic action and the function of this unexplored tunnel region remain intriguingly elusive.
Negamycin binds to the wall of the nascent chain exit tunnel of the 50S ribosomal subunit.,Schroeder SJ, Blaha G, Moore PB Antimicrob Agents Chemother. 2007 Dec;51(12):4462-5. Epub 2007 Jul 30. PMID:17664317[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑ Schroeder SJ, Blaha G, Moore PB. Negamycin binds to the wall of the nascent chain exit tunnel of the 50S ribosomal subunit. Antimicrob Agents Chemother. 2007 Dec;51(12):4462-5. Epub 2007 Jul 30. PMID:17664317 doi:10.1128/AAC.00455-07
