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1sch

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Revision as of 06:57, 8 March 2018

PEANUT PEROXIDASE

Structural highlights

1sch is a 2 chain structure with sequence from Arachis hypogaea. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
NonStd Res:
Activity:	Peroxidase, with EC number 1.11.1.7
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PER1_ARAHY] 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

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

BACKGROUND. Peroxidases catalyze a wide variety of peroxide-dependent oxidations. Based on sequence alignments, heme peroxidases have been divided into three classes. Crystal structures are available for peroxidases of classes I and II, but until now no structure has been determined for class III, the classical extracellular plant peroxidases. RESULTS. The crystal structure of peanut peroxidase has been solved to 2.7 A resolution. The helical fold is similar to that of known peroxidase structures. The 294-residue polypeptide chain is accompanied by a heme and two calcium ions, and there is some evidence of glycosylation. CONCLUSIONS. This is the first complete structure of a class III peroxidase and as such should serve as a model for other class III enzymes including the much-studied horseradish peroxidase. It may also aid in the interpretation of functional differences between the peroxidase classes. Ten helices conserved in class I and II peroxidases are also found in peanut peroxidase. Key residues of the heme environment and the location of two calcium ions are shared with class II peroxidases. Peanut peroxidase contains three unique helices, two of which contribute to the substrate access channel leading to the heme edge.

The crystal structure of peanut peroxidase.,Schuller DJ, Ban N, Huystee RB, McPherson A, Poulos TL Structure. 1996 Mar 15;4(3):311-21. PMID:8805539^[1]

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

References

↑ Schuller DJ, Ban N, Huystee RB, McPherson A, Poulos TL. The crystal structure of peanut peroxidase. Structure. 1996 Mar 15;4(3):311-21. PMID:8805539

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1sch"

@@ Line 1: / Line 1: @@
 ==PEANUT PEROXIDASE==
 <StructureSection load='1sch' size='340' side='right' caption='[[1sch]], [[Resolution|resolution]] 2.56&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peroxidase Peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.7 1.11.1.7] </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=1sch FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sch OCA], [http://pdbe.org/1sch PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1sch RCSB], [http://www.ebi.ac.uk/pdbsum/1sch 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=1sch FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sch OCA], [http://pdbe.org/1sch PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1sch RCSB], [http://www.ebi.ac.uk/pdbsum/1sch PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1sch ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sc/1sch_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sc/1sch_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1sch

From Proteopedia

Revision as of 06:57, 8 March 2018

PEANUT PEROXIDASE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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