This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1dwq
From Proteopedia
(Difference between revisions)
| (4 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | == | + | |
| - | <StructureSection load='1dwq' size='340' side='right' caption='[[1dwq]], [[Resolution|resolution]] 2.20Å' scene=''> | + | ==Crystal Structure of Hydroxynitrile Lyase from Manihot esculenta in Complex with Substrates Acetone and Chloroacetone:Implications for the Mechanism of Cyanogenesis== |
| + | <StructureSection load='1dwq' size='340' side='right'caption='[[1dwq]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1dwq]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1dwq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Manihot_esculenta Manihot esculenta]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DWQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DWQ FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2Å</td></tr> |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATO:CHLOROACETONE'>ATO</scene>, <scene name='pdbligand=CSA:S-ACETONYLCYSTEINE'>CSA</scene></td></tr> | |
| - | <tr id=' | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1dwq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dwq OCA], [https://pdbe.org/1dwq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dwq RCSB], [https://www.ebi.ac.uk/pdbsum/1dwq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dwq ProSAT]</span></td></tr> |
| - | + | ||
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | |
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/HNL_MANES HNL_MANES] Involved in cyanogenesis, the release of HCN from injured tissues. Decomposes a varieties of (R) or (S) cyanohydrins into HCN and the corresponding aldehydes and ketones. The natural substrate of this enzyme is (S)-acetone cyanohydrin. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dw/1dwq_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dw/1dwq_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </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/ | + | </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/main_output.php?pdb_ID=1dwq ConSurf]. |
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | The crystal structures of hydroxynitrile lyase from Manihot esculenta (MeHNL) complexed with the native substrate acetone and substrate analogue chloroacetone have been determined and refined at 2.2 A resolution. The substrates are positioned in the active site by hydrogen-bond interactions of the carbonyl O atom with Thr11 OG, Ser80 OG and, to a lesser extent, Cys81 SG. These studies support a mechanism for cyanogenesis as well as for the stereospecific MeHNL-catalyzed formation of (S)-cyanohydrins, which closely resembles the base-catalyzed chemical reaction of HCN with carbonyl compounds. | ||
| - | |||
| - | Structure of hydroxynitrile lyase from Manihot esculenta in complex with substrates acetone and chloroacetone: implications for the mechanism of cyanogenesis.,Lauble H, Forster S, Miehlich B, Wajant H, Effenberger F Acta Crystallogr D Biol Crystallogr. 2001 Feb;57(Pt 2):194-200. PMID:11173464<ref>PMID:11173464</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1dwq" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Manihot esculenta]] |
| - | [[Category: Effenberger | + | [[Category: Effenberger F]] |
| - | [[Category: Forster | + | [[Category: Forster S]] |
| - | [[Category: Lauble | + | [[Category: Lauble H]] |
| - | [[Category: Mielich | + | [[Category: Mielich B]] |
| - | [[Category: Wajant | + | [[Category: Wajant H]] |
| - | + | ||
| - | + | ||
Current revision
Crystal Structure of Hydroxynitrile Lyase from Manihot esculenta in Complex with Substrates Acetone and Chloroacetone:Implications for the Mechanism of Cyanogenesis
| |||||||||||
