1g3m: Difference between revisions
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[[Image:1g3m.gif|left|200px]] | [[Image:1g3m.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE OF HUMAN ESTROGEN SULFOTRANSFERASE IN COMPLEX WITH IN-ACTIVE COFACTOR PAP AND 3,5,3',5'-TETRACHLORO-BIPHENYL-4,4'-DIOL''' | {{Structure | ||
|PDB= 1g3m |SIZE=350|CAPTION= <scene name='initialview01'>1g3m</scene>, resolution 1.70Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=A3P:ADENOSINE-3'-5'-DIPHOSPHATE'>A3P</scene>, <scene name='pdbligand=PCQ:3,5,3',5'-TETRACHLORO-BIPHENYL-4,4'-DIOL'>PCQ</scene> and <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Estrone_sulfotransferase Estrone sulfotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.8.2.4 2.8.2.4] | |||
|GENE= STE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |||
}} | |||
'''CRYSTAL STRUCTURE OF HUMAN ESTROGEN SULFOTRANSFERASE IN COMPLEX WITH IN-ACTIVE COFACTOR PAP AND 3,5,3',5'-TETRACHLORO-BIPHENYL-4,4'-DIOL''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1G3M is a [ | 1G3M is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G3M OCA]. | ||
==Reference== | ==Reference== | ||
Crystallographic analysis of a hydroxylated polychlorinated biphenyl (OH-PCB) bound to the catalytic estrogen binding site of human estrogen sulfotransferase., Shevtsov S, Petrotchenko EV, Pedersen LC, Negishi M, Environ Health Perspect. 2003 Jun;111(7):884-8. PMID:[http:// | Crystallographic analysis of a hydroxylated polychlorinated biphenyl (OH-PCB) bound to the catalytic estrogen binding site of human estrogen sulfotransferase., Shevtsov S, Petrotchenko EV, Pedersen LC, Negishi M, Environ Health Perspect. 2003 Jun;111(7):884-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12782487 12782487] | ||
[[Category: Estrone sulfotransferase]] | [[Category: Estrone sulfotransferase]] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
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[[Category: sulfotransferase]] | [[Category: sulfotransferase]] | ||
''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 11:17:46 2008'' | ||
Revision as of 09:17, 20 March 2008
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| 1g3m, resolution 1.70Å | |||||||||||||
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| Ligands: | A3P, PCQ and EDO | ||||||||||||
| Gene: | STE (Homo sapiens) | ||||||||||||
| Activity: | Estrone sulfotransferase, with EC number 2.8.2.4 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
CRYSTAL STRUCTURE OF HUMAN ESTROGEN SULFOTRANSFERASE IN COMPLEX WITH IN-ACTIVE COFACTOR PAP AND 3,5,3',5'-TETRACHLORO-BIPHENYL-4,4'-DIOL
Overview
Certain hydroxylated polychlorinated biphenyls (OH-PCBs) inhibit the human estrogen sulfotransferase (hEST) at subnanomolar concentrations, suggesting a possible pathway for PCB toxicity due to environmental exposure in humans. To address the structural basis of the inhibition, we have determined the crystal structure of hEST in the presence of the sulfuryl donor product 3 -phosphoadenosine 5 -phosphate and the OH-PCB 4,4 -OH 3,5,3,5 -tetraCB. The OH-PCB binds in the estrogen binding site with the position of the first phenolic ring in an orientation similar to the phenolic ring of 17 beta-estradiol. Interestingly, the OH-PCB does not bind in a planar conformation, but rather with a 30-degree twist between the phenyl rings. The crystal structure of hEST with the OH-PCB bound gives physical evidence that certain OH-PCBs can mimic binding of estrogenic compounds in biological systems.
Disease
Known diseases associated with this structure: Mandibuloacral dysplasia with type B lipodystrophy OMIM:[606480], Restrictive dermopathy, lethal OMIM:[606480]
About this Structure
1G3M is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystallographic analysis of a hydroxylated polychlorinated biphenyl (OH-PCB) bound to the catalytic estrogen binding site of human estrogen sulfotransferase., Shevtsov S, Petrotchenko EV, Pedersen LC, Negishi M, Environ Health Perspect. 2003 Jun;111(7):884-8. PMID:12782487
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