1w2b

From Proteopedia

Revision as of 11:29, 30 October 2007

TRIGGER FACTOR RIBOSOME BINDING DOMAIN IN COMPLEX WITH 50S

Overview

During protein biosynthesis, nascent polypeptide chains that emerge from, the ribosomal exit tunnel encounter ribosome-associated chaperones, which, assist their folding to the native state. Here we present a 2.7 A crystal, structure of Escherichia coli trigger factor, the best-characterized, chaperone of this type, together with the structure of its, ribosome-binding domain in complex with the Haloarcula marismortui large, ribosomal subunit. Trigger factor adopts a unique conformation resembling, a crouching dragon with separated domains forming the amino-terminal, ribosome-binding 'tail', the peptidyl-prolyl isomerase 'head', the, carboxy-terminal 'arms' and connecting regions building up the 'back'., From its attachment point on the ribosome, trigger factor projects the, extended ... [(full description)]

About this Structure

1W2B is a [Protein complex] structure of sequences from [Escherichia coli] and [Haloarcula marismortui] with MG, NA, K, CL and CD as [ligands]. Structure known Active Site: AC1. Full crystallographic information is available from [OCA].

Reference

Trigger factor in complex with the ribosome forms a molecular cradle for nascent proteins., Ferbitz L, Maier T, Patzelt H, Bukau B, Deuerling E, Ban N, Nature. 2004 Sep 30;431(7008):590-6. Epub 2004 Aug 29. PMID:15334087

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