2c62
From Proteopedia
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==Overview== | ==Overview== | ||
| - | The 1.74-A crystal structure of the human transcription cofactor PC4 in | + | The 1.74-A crystal structure of the human transcription cofactor PC4 in complex with a single-stranded 20-mer oligonucleotide reveals how symmetry-related beta-surfaces of the protein homodimer interact with juxtaposed 5-nucleotide DNA regions running in opposite directions. The structure explains high-affinity binding of PC4 to the complementary strands of unwinding duplex DNA, and it suggests the cofactor may have a role in relaxing negative supercoils or exposing unpaired bases for sequence-specific recognition by other biomolecules. |
==About this Structure== | ==About this Structure== | ||
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[[Category: transcription regulation]] | [[Category: transcription regulation]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:45:16 2008'' |
Revision as of 14:45, 21 February 2008
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CRYSTAL STRUCTURE OF THE HUMAN TRANSCRIPTION COFACTOR PC4 IN COMPLEX WITH SINGLE-STRANDED DNA
Overview
The 1.74-A crystal structure of the human transcription cofactor PC4 in complex with a single-stranded 20-mer oligonucleotide reveals how symmetry-related beta-surfaces of the protein homodimer interact with juxtaposed 5-nucleotide DNA regions running in opposite directions. The structure explains high-affinity binding of PC4 to the complementary strands of unwinding duplex DNA, and it suggests the cofactor may have a role in relaxing negative supercoils or exposing unpaired bases for sequence-specific recognition by other biomolecules.
About this Structure
2C62 is a Single protein structure of sequence from Homo sapiens with as ligand. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
A global transcription cofactor bound to juxtaposed strands of unwound DNA., Werten S, Moras D, Nat Struct Mol Biol. 2006 Feb;13(2):181-2. Epub 2006 Jan 15. PMID:16415882
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