1mdy
From Proteopedia
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[[Image:1mdy.gif|left|200px]] | [[Image:1mdy.gif|left|200px]] | ||
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'''CRYSTAL STRUCTURE OF MYOD BHLH DOMAIN BOUND TO DNA: PERSPECTIVES ON DNA RECOGNITION AND IMPLICATIONS FOR TRANSCRIPTIONAL ACTIVATION''' | '''CRYSTAL STRUCTURE OF MYOD BHLH DOMAIN BOUND TO DNA: PERSPECTIVES ON DNA RECOGNITION AND IMPLICATIONS FOR TRANSCRIPTIONAL ACTIVATION''' | ||
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[[Category: Rould, M A.]] | [[Category: Rould, M A.]] | ||
[[Category: Weintraub, H.]] | [[Category: Weintraub, H.]] | ||
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- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:55:38 2008'' | |
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Revision as of 21:55, 2 May 2008
CRYSTAL STRUCTURE OF MYOD BHLH DOMAIN BOUND TO DNA: PERSPECTIVES ON DNA RECOGNITION AND IMPLICATIONS FOR TRANSCRIPTIONAL ACTIVATION
Overview
The crystal structure of a MyoD basic-helix-loop-helix (bHLH) domain-DNA complex has been solved and refined at 2.8 A resolution. This structure proves that bHLH and bHLH-leucine zipper (bHLH-ZIP) proteins are remarkably similar; it helps us understand subtle differences in binding preferences for these proteins; and it has surprising implications for our understanding of transcription. Specifically, Ala-114 and Thr-115, which are required for positive control in the myogenic proteins, are buried at the protein-DNA interface. These residues are not available for direct protein-protein contacts, but they may determine the conformation of Arg-111. Comparisons with Max suggest that the conformation of this arginine, which is different in the two structures, may play an important role in myogenic transcription.
About this Structure
1MDY is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
Reference
Crystal structure of MyoD bHLH domain-DNA complex: perspectives on DNA recognition and implications for transcriptional activation., Ma PC, Rould MA, Weintraub H, Pabo CO, Cell. 1994 May 6;77(3):451-9. PMID:8181063 Page seeded by OCA on Sat May 3 00:55:38 2008