1fk8

From Proteopedia

(Difference between revisions)

Revision as of 12:00, 25 December 2014

THE CRYSTAL STRUCTURE OF THE BINARY COMPLEX WITH NAD OF 3-ALPHA-HYDROXYSTEROID DEHYDROGENASE FROM COMAMONAS TESTOSTERONI, A MEMBER OF THE SHORT CHAIN DEHYDROGENASE/REDUCTASE FAMILY

Structural highlights

1fk8 is a 2 chain structure with sequence from Comamonas testosteroni. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1fjh
Activity:	3-alpha-hydroxysteroid dehydrogenase (B-specific), with EC number 1.1.1.50
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[Q9ZFY9_COMTE] Catalyzes the reversible interconversion of hydroxy and oxo groups at position 3 of the steroid nucleus. Along with the 3 alpha-hydroxysteroid dehydrogenase and 3-oxo-reductase activities towards a variety of cis or trans fused A/B ring steroids, it also reduces several xenobiotic carbonyl compounds, including a metyrapone-based class of insecticides, to the respective alcohol metabolites. No detectable activity on testosterone, progesterone or 3-oxo-desogestrel.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The crystal structure of 3alpha-hydroxysteroid dehydrogenase/carbonyl reductase from Comamonas testosteroni (3alpha-HSDH) as well as the structure of its binary complex with NAD(+) have been solved at 1.68-A and 1.95-A resolution, respectively. The enzyme is a member of the short chain dehydrogenase/reductase (SDR) family. Accordingly, the active center and the conformation of the bound nucleotide cofactor closely resemble those of other SDRs. The crystal structure reveals one homodimer per asymmetric unit representing the physiologically active unity. Dimerization takes place via an interface essentially built-up by helix alphaG and strand betaG of each subunit. So far this type of intermolecular contact has exclusively been observed in homotetrameric SDRs but never in the structure of a homodimeric SDR. The formation of a tetramer is blocked in 3alpha-HSDH by the presence of a predominantly alpha-helical subdomain which is missing in all other SDRs of known structure.

The crystal structure of 3alpha -hydroxysteroid dehydrogenase/carbonyl reductase from Comamonas testosteroni shows a novel oligomerization pattern within the short chain dehydrogenase/reductase family.,Grimm C, Maser E, Mobus E, Klebe G, Reuter K, Ficner R J Biol Chem. 2000 Dec 29;275(52):41333-9. PMID:11007791^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Grimm C, Maser E, Mobus E, Klebe G, Reuter K, Ficner R. The crystal structure of 3alpha -hydroxysteroid dehydrogenase/carbonyl reductase from Comamonas testosteroni shows a novel oligomerization pattern within the short chain dehydrogenase/reductase family. J Biol Chem. 2000 Dec 29;275(52):41333-9. PMID:11007791 doi:10.1074/jbc.M007559200

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1fk8"

@@ Line 8: / Line 8: @@
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1fk8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fk8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1fk8 RCSB], [http://www.ebi.ac.uk/pdbsum/1fk8 PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/Q9ZFY9_COMTE Q9ZFY9_COMTE]] Catalyzes the reversible interconversion of hydroxy and oxo groups at position 3 of the steroid nucleus. Along with the 3 alpha-hydroxysteroid dehydrogenase and 3-oxo-reductase activities towards a variety of cis or trans fused A/B ring steroids, it also reduces several xenobiotic carbonyl compounds, including a metyrapone-based class of insecticides, to the respective alcohol metabolites. No detectable activity on testosterone, progesterone or 3-oxo-desogestrel.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1fk8

From Proteopedia

Revision as of 12:00, 25 December 2014

THE CRYSTAL STRUCTURE OF THE BINARY COMPLEX WITH NAD OF 3-ALPHA-HYDROXYSTEROID DEHYDROGENASE FROM COMAMONAS TESTOSTERONI, A MEMBER OF THE SHORT CHAIN DEHYDROGENASE/REDUCTASE FAMILY

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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