1dcp
From Proteopedia
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| - | [[Image:1dcp.jpg|left|200px]] | + | [[Image:1dcp.jpg|left|200px]] |
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| - | '''DCOH, A BIFUNCTIONAL PROTEIN-BINDING TRANSCRIPTIONAL COACTIVATOR, COMPLEXED WITH BIOPTERIN''' | + | {{Structure |
| + | |PDB= 1dcp |SIZE=350|CAPTION= <scene name='initialview01'>1dcp</scene>, resolution 2.30Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=HBI:7,8-DIHYDROBIOPTERIN'>HBI</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/4a-hydroxytetrahydrobiopterin_dehydratase 4a-hydroxytetrahydrobiopterin dehydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.96 4.2.1.96] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''DCOH, A BIFUNCTIONAL PROTEIN-BINDING TRANSCRIPTIONAL COACTIVATOR, COMPLEXED WITH BIOPTERIN''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1DCP is a [ | + | 1DCP is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DCP OCA]. |
==Reference== | ==Reference== | ||
| - | High-resolution structures of the bifunctional enzyme and transcriptional coactivator DCoH and its complex with a product analogue., Cronk JD, Endrizzi JA, Alber T, Protein Sci. 1996 Oct;5(10):1963-72. PMID:[http:// | + | High-resolution structures of the bifunctional enzyme and transcriptional coactivator DCoH and its complex with a product analogue., Cronk JD, Endrizzi JA, Alber T, Protein Sci. 1996 Oct;5(10):1963-72. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8897596 8897596] |
[[Category: 4a-hydroxytetrahydrobiopterin dehydratase]] | [[Category: 4a-hydroxytetrahydrobiopterin dehydratase]] | ||
[[Category: Rattus norvegicus]] | [[Category: Rattus norvegicus]] | ||
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[[Category: dimerization cofactor]] | [[Category: dimerization cofactor]] | ||
[[Category: transcriptional stimulator]] | [[Category: transcriptional stimulator]] | ||
| - | [[Category: transregulator of homeodomain | + | [[Category: transregulator of homeodomain protein]] |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:36:26 2008'' |
Revision as of 08:36, 20 March 2008
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| , resolution 2.30Å | |||||||
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| Ligands: | |||||||
| Activity: | 4a-hydroxytetrahydrobiopterin dehydratase, with EC number 4.2.1.96 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
DCOH, A BIFUNCTIONAL PROTEIN-BINDING TRANSCRIPTIONAL COACTIVATOR, COMPLEXED WITH BIOPTERIN
Overview
DCoH, the dimerization cofactor of hepatocyte nuclear factor 1 (HNF-1), functions as both a transcriptional coactivator and a pterin dehydratase. To probe the relationship between these two functions, the X-ray crystal structures of the free enzyme and its complex with the product analogue 7,8-dihydrobiopterin were refined at 2.3 A resolution. The ligand binds at four sites per tetrameric enzyme, with little apparent conformational change in the protein. Each active-site cleft is located in a subunit interface, adjacent to a prominent saddle motif that has structural similarities to the TATA binding protein. The pterin binds within an arch of aromatic residues that extends across one dimer interface. The bound ligand makes contacts to three conserved histidines, and this arrangement restricts proposals for the enzymatic mechanism of dehydration. The dihedral symmetry of DCoH suggests that binding to the dimerization domain of HNF-1 likely involves the superposition of two-fold rotation axes of the two proteins.
About this Structure
1DCP is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
High-resolution structures of the bifunctional enzyme and transcriptional coactivator DCoH and its complex with a product analogue., Cronk JD, Endrizzi JA, Alber T, Protein Sci. 1996 Oct;5(10):1963-72. PMID:8897596
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