2hsg

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Image:2hsg.jpg

2hsg, resolution 2.500Å

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Structure of transcription regulator CcpA in its DNA-free state

Overview

The catabolite control protein A (CcpA) from Bacillus megaterium is a, member of the bacterial repressor protein family GalR-LacI. CcpA functions, as master transcriptional regulator of carbon catabolite, repression/regulation in firmicutes. Here we present the crystal structure, of full-length apo CcpA at 2.5 A resolution from B. megaterium. The, structure reveals the location of the helix-turn-helix domain as well as, the hinge region, which were not visible due to their high flexibility in, earlier crystallographic studies on CcpA molecules. The structure of the, apo CcpA homodimer in the present form is in contrast to other reported, structures for CcpA.

About this Structure

2HSG is a Single protein structure of sequence from Bacillus megaterium. Full crystallographic information is available from OCA.

Reference

Structure of full-length transcription regulator CcpA in the apo form., Loll B, Saenger W, Biesiadka J, Biochim Biophys Acta. 2007 Apr 18;. PMID:17500051

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