1hxh: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
==COMAMONAS TESTOSTERONI 3BETA/17BETA HYDROXYSTEROID DEHYDROGENASE== | ==COMAMONAS TESTOSTERONI 3BETA/17BETA HYDROXYSTEROID DEHYDROGENASE== | ||
<StructureSection load='1hxh' size='340' side='right' caption='[[1hxh]], [[Resolution|resolution]] 1.22Å' scene=''> | <StructureSection load='1hxh' size='340' side='right'caption='[[1hxh]], [[Resolution|resolution]] 1.22Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1hxh]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_11996 Atcc 11996]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HXH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1HXH FirstGlance]. <br> | <table><tr><td colspan='2'>[[1hxh]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_11996 Atcc 11996]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HXH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1HXH FirstGlance]. <br> | ||
| Line 27: | Line 27: | ||
</div> | </div> | ||
<div class="pdbe-citations 1hxh" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1hxh" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Hydroxysteroid dehydrogenase 3D structures|Hydroxysteroid dehydrogenase 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
| Line 32: | Line 35: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Atcc 11996]] | [[Category: Atcc 11996]] | ||
[[Category: Large Structures]] | |||
[[Category: Benach, J]] | [[Category: Benach, J]] | ||
[[Category: Berndt, K D]] | [[Category: Berndt, K D]] | ||
Revision as of 13:21, 30 October 2019
COMAMONAS TESTOSTERONI 3BETA/17BETA HYDROXYSTEROID DEHYDROGENASECOMAMONAS TESTOSTERONI 3BETA/17BETA HYDROXYSTEROID DEHYDROGENASE
Structural highlights
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 PubMedThe enzyme 3beta/17beta-hydroxysteroid dehydrogenase (3beta/17beta-HSD) is a steroid-inducible component of the Gram-negative bacterium Comamonas testosteroni. It catalyzes the reversible reduction/dehydrogenation of the oxo/beta-hydroxy groups at positions 3 and 17 of steroid compounds, including hormones and isobile acids. Crystallographic analysis at 1.2 A resolution reveals the enzyme to have nearly identical subunits that form a tetramer with 222 symmetry. This is one of the largest oligomeric structures refined at this resolution. The subunit consists of a monomer with a single-domain structure built around a seven-stranded beta-sheet flanked by six alpha-helices. The active site contains a Ser-Tyr-Lys triad, typical for short-chain dehydrogenases/reductases (SDR). Despite their highly diverse substrate specificities, SDR members show a close to identical folding pattern architectures and a common catalytic mechanism. In contrast to other SDR apostructures determined, the substrate binding loop is well-defined. Analysis of structure-activity relationships of catalytic cleft residues, docking analysis of substrates and inhibitors, and accessible surface analysis explains how 3beta/17beta-HSD accommodates steroid substrates of different conformations. Structure of bacterial 3beta/17beta-hydroxysteroid dehydrogenase at 1.2 A resolution: a model for multiple steroid recognition.,Benach J, Filling C, Oppermann UC, Roversi P, Bricogne G, Berndt KD, Jornvall H, Ladenstein R Biochemistry. 2002 Dec 17;41(50):14659-68. PMID:12475215[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
| ||||||||||||||||||