2oui

From Proteopedia

(Difference between revisions)

Revision as of 09:10, 18 October 2017

D275P mutant of alcohol dehydrogenase from protozoa Entamoeba histolytica

Structural highlights

2oui is a 4 chain structure with sequence from Enthi. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , , ,
Related:	1y9a
Gene:	ADH1 (ENTHI)
Activity:	Alcohol dehydrogenase (NADP(+)), with EC number 1.1.1.2
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ADH1_ENTHI] Alcohol dehydrogenase with a preference for medium chain secondary alcohols, such as 2-butanol and isopropanol. Has very low activity with primary alcohols, such as ethanol. Under physiological conditions, the enzyme reduces aldehydes and 2-ketones to produce secondary alcohols. Is also active with acetaldehyde and propionaldehyde.^[1]

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

Analysis of the three-dimensional structures of two closely related thermophilic and hyperthermophilic alcohol dehydrogenases (ADHs) from the respective microorganisms Entamoeba histolytica (EhADH1) and Thermoanaerobacter brockii (TbADH) suggested that a unique, strategically located proline residue (Pro275) at the center of the dimerization interface might be crucial for maintaining the thermal stability of TbADH. To assess the contribution of Pro275 to the thermal stability of the ADHs, we applied site-directed mutagenesis to replace Asp275 of EhADH1 with Pro (D275P-EhADH1) and conversely Pro275 of TbADH with Asp (P275D-TbADH). The results indicate that replacing Asp275 with Pro significantly enhances the thermal stability of EhADH1 (DeltaT(1/2) </= +10 degrees C), whereas the reverse mutation in the thermophilic TbADH (P275D-TbADH) reduces the thermostability of the enzyme (DeltaT(1/2) </= -18.8 degrees C). Analysis of the crystal structures of the thermostabilized mutant D275P-EhADH1 and the thermocompromised mutant P275D-TbADH suggest that a proline residue at position 275 thermostabilized the enzymes by reducing flexibility and by reinforcing hydrophobic interactions at the dimer-dimer interface of the tetrameric ADHs. Proteins 2008. (c) 2008 Wiley-Liss, Inc.

Thermal stabilization of the protozoan Entamoeba histolytica alcohol dehydrogenase by a single proline substitution.,Goihberg E, Dym O, Tel-Or S, Shimon L, Frolow F, Peretz M, Burstein Y Proteins. 2008 Feb 7;. PMID:18260103^[2]

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

References

↑ Goihberg E, Peretz M, Tel-Or S, Dym O, Shimon L, Frolow F, Burstein Y. Biochemical and Structural Properties of Chimeras Constructed by Exchange of Cofactor-Binding Domains in Alcohol Dehydrogenases from Thermophilic and Mesophilic Microorganisms. Biochemistry. 2010 Feb 9. PMID:20102159 doi:10.1021/bi901730x
↑ Goihberg E, Dym O, Tel-Or S, Shimon L, Frolow F, Peretz M, Burstein Y. Thermal stabilization of the protozoan Entamoeba histolytica alcohol dehydrogenase by a single proline substitution. Proteins. 2008 Feb 7;. PMID:18260103 doi:10.1002/prot.21946

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/2oui"

@@ Line 1: / Line 1: @@
 ==D275P mutant of alcohol dehydrogenase from protozoa Entamoeba histolytica==
 <StructureSection load='2oui' size='340' side='right' caption='[[2oui]], [[Resolution|resolution]] 1.77&Aring;' scene=''>
@@ Line 7: / Line 8: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ADH1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5759 ENTHI])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Alcohol_dehydrogenase_(NADP(+)) Alcohol dehydrogenase (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.2 1.1.1.2] </span></td></tr>
-<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=2oui FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oui OCA], [http://pdbe.org/2oui PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2oui RCSB], [http://www.ebi.ac.uk/pdbsum/2oui PDBsum]</span></td></tr>
+<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=2oui FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oui OCA], [http://pdbe.org/2oui PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2oui RCSB], [http://www.ebi.ac.uk/pdbsum/2oui PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2oui ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 32: / Line 33: @@
 ==See Also==
-*[[Alcohol dehydrogenase|Alcohol dehydrogenase]]
 *[[Alcohol dehydrogenase from Entamoeba histolytica|Alcohol dehydrogenase from Entamoeba histolytica]]
 *[[D275P mutant of alcohol dehydrogenase from protozoa Entamoeba histolytica|D275P mutant of alcohol dehydrogenase from protozoa Entamoeba histolytica]]

2oui

From Proteopedia

Revision as of 09:10, 18 October 2017

D275P mutant of alcohol dehydrogenase from protozoa Entamoeba histolytica

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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