1hku

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{{STRUCTURE_1hku| PDB=1hku | SCENE= }}
{{STRUCTURE_1hku| PDB=1hku | SCENE= }}
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'''CTBP/BARS: A DUAL-FUNCTION PROTEIN INVOLVED IN TRANSCRIPTION COREPRESSION AND GOLGI MEMBRANE FISSION'''
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===CTBP/BARS: A DUAL-FUNCTION PROTEIN INVOLVED IN TRANSCRIPTION COREPRESSION AND GOLGI MEMBRANE FISSION===
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==Overview==
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C-terminal-binding protein/brefeldin A-ADP ribosylated substrate (CtBP/BARS) plays key roles in development and oncogenesis as a transcription co-repressor, and in intracellular traffic as a promoter of Golgi membrane fission. Co-repressor activity is regulated by NAD(H) binding to CtBP/BARS, while membrane fission is associated with its acyl-CoA-dependent acyltransferase activity. Here, we report the crystal structures of rat CtBP/BARS in a binary complex with NAD(H), and in a ternary complex with a PIDLSKK peptide mimicking the consensus motif (PXDLS) recognized in CtBP/BARS cellular partners. The structural data show CtBP/BARS in a NAD(H)-bound dimeric form; the peptide binding maps the recognition site for DNA-binding proteins and histone deacetylases to an N-terminal region of the protein. The crystal structure together with the site-directed mutagenesis data and binding experiments suggest a rationale for the molecular mechanisms underlying the two fundamental co-existing, but diverse, activities supported by CtBP/BARS in the nucleus and in Golgi membranes.
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{{ABSTRACT_PUBMED_12805226}}
==About this Structure==
==About this Structure==
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[[Category: Nad]]
[[Category: Nad]]
[[Category: Transcription co-repression]]
[[Category: Transcription co-repression]]
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Revision as of 05:19, 1 July 2008

Image:1hku.png

Template:STRUCTURE 1hku

CTBP/BARS: A DUAL-FUNCTION PROTEIN INVOLVED IN TRANSCRIPTION COREPRESSION AND GOLGI MEMBRANE FISSION

Template:ABSTRACT PUBMED 12805226

About this Structure

1HKU is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.

Reference

CtBP/BARS: a dual-function protein involved in transcription co-repression and Golgi membrane fission., Nardini M, Spano S, Cericola C, Pesce A, Massaro A, Millo E, Luini A, Corda D, Bolognesi M, EMBO J. 2003 Jun 16;22(12):3122-30. PMID:12805226

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