1gx2
From Proteopedia
(Difference between revisions)
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<StructureSection load='1gx2' size='340' side='right'caption='[[1gx2]], [[Resolution|resolution]] 2.20Å' scene=''> | <StructureSection load='1gx2' size='340' side='right'caption='[[1gx2]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1gx2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[1gx2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Armoracia_rusticana Armoracia rusticana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GX2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GX2 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=' | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BHO:BENZHYDROXAMIC+ACID'>BHO</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr> |
| - | + | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1gx2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gx2 OCA], [https://pdbe.org/1gx2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gx2 RCSB], [https://www.ebi.ac.uk/pdbsum/1gx2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gx2 ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1gx2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gx2 OCA], [https://pdbe.org/1gx2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gx2 RCSB], [https://www.ebi.ac.uk/pdbsum/1gx2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gx2 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/PER1A_ARMRU PER1A_ARMRU] Removal of H(2)O(2), oxidation of toxic reductants, biosynthesis and degradation of lignin, suberization, auxin catabolism, response to environmental stresses such as wounding, pathogen attack and oxidative stress. These functions might be dependent on each isozyme/isoform in each plant tissue. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</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=1gx2 ConSurf]. | </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=1gx2 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | We have solved the x-ray structures of the binary horseradish peroxidase C-ferulic acid complex and the ternary horseradish peroxidase C-cyanide-ferulic acid complex to 2.0 and 1.45 A, respectively. Ferulic acid is a naturally occurring phenolic compound found in the plant cell wall and is an in vivo substrate for plant peroxidases. The x-ray structures demonstrate the flexibility and dynamic character of the aromatic donor binding site in horseradish peroxidase and emphasize the role of the distal arginine (Arg(38)) in both substrate oxidation and ligand binding. Arg(38) hydrogen bonds to bound cyanide, thereby contributing to the stabilization of the horseradish peroxidase-cyanide complex and suggesting that the distal arginine will be able to contribute with a similar interaction during stabilization of a bound peroxy transition state and subsequent O-O bond cleavage. The catalytic arginine is additionally engaged in an extensive hydrogen bonding network, which also includes the catalytic distal histidine, a water molecule and Pro(139), a proline residue conserved within the plant peroxidase superfamily. Based on the observed hydrogen bonding network and previous spectroscopic and kinetic work, a general mechanism of peroxidase substrate oxidation is proposed. | ||
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| - | The structures of the horseradish peroxidase C-ferulic acid complex and the ternary complex with cyanide suggest how peroxidases oxidize small phenolic substrates.,Henriksen A, Smith AT, Gajhede M J Biol Chem. 1999 Dec 3;274(49):35005-11. PMID:10574977<ref>PMID:10574977</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1gx2" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
*[[Horseradish peroxidase|Horseradish peroxidase]] | *[[Horseradish peroxidase|Horseradish peroxidase]] | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Armoracia rusticana]] |
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | + | [[Category: Gajhede M]] | |
| - | [[Category: Gajhede | + | [[Category: Henriksen A]] |
| - | [[Category: Henriksen | + | [[Category: Meno K]] |
| - | [[Category: Meno | + | |
| - | + | ||
Revision as of 12:09, 13 December 2023
Recombinant horseradish peroxidase Phe209Ser complex with benzhydroxamic acid
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