3fjn
From Proteopedia
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| - | [[ | + | ==The crystal structure of 17-alpha hydroxysteroid dehydrogenase Y224D mutant.== |
| + | <StructureSection load='3fjn' size='340' side='right' caption='[[3fjn]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3fjn]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FJN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FJN FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene><br> | ||
| + | <tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/3(or_17)-alpha-hydroxysteroid_dehydrogenase 3(or 17)-alpha-hydroxysteroid dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.209 1.1.1.209] </span></td></tr> | ||
| + | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3fjn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fjn OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3fjn RCSB], [http://www.ebi.ac.uk/pdbsum/3fjn PDBsum]</span></td></tr> | ||
| + | <table> | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fj/3fjn_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Mouse 3(17)alpha-hydroxysteroid dehydrogenase (AKR1C21) is the only aldo-keto reductase that catalyzes the stereospecific reduction of 3- and 17-ketosteroids to the corresponding 3(17)alpha-hydroxysteroids. The Y224D mutation of AKR1C21 reduced the K(m) value for NADP(H) by up to 80-fold and completely reversed the 17alpha stereospecificity of the enzyme. The crystal structure of the Y224D mutant at 2.3 A resolution revealed that the mutation resulted in a change in the conformation of the flexible loop B, including the V-shaped groove, which is a unique feature of the active-site architecture of wild-type AKR1C21 and is formed by the side chains of Tyr224 and Trp227. Furthermore, mutations (Y224F and Q222N) of residues involved in forming the safety belt for binding of the coenzyme showed similar alterations in kinetic constants for 3alpha-hydroxy/3-ketosteroids and 17-hydroxy/ketosteroids compared with the wild type. | ||
| - | + | Studies on a Tyr residue critical for the binding of coenzyme and substrate in mouse 3(17)alpha-hydroxysteroid dehydrogenase (AKR1C21): structure of the Y224D mutant enzyme.,Dhagat U, Endo S, Mamiya H, Hara A, El-Kabbani O Acta Crystallogr D Biol Crystallogr. 2010 Feb;66(Pt 2):198-204. Epub 2010, Jan 22. PMID:20124700<ref>PMID:20124700</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
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==See Also== | ==See Also== | ||
*[[Hydroxysteroid dehydrogenase|Hydroxysteroid dehydrogenase]] | *[[Hydroxysteroid dehydrogenase|Hydroxysteroid dehydrogenase]] | ||
| - | + | == References == | |
| - | == | + | <references/> |
| - | < | + | __TOC__ |
| + | </StructureSection> | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Dhagat, U.]] | [[Category: Dhagat, U.]] | ||
Revision as of 13:01, 29 September 2014
The crystal structure of 17-alpha hydroxysteroid dehydrogenase Y224D mutant.
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