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1wzd

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Revision as of 13:22, 10 September 2015

Crystal Structure Of An Artificial Metalloprotein: Fe(10-CH2CH2COOH-Salophen)/Wild Type Heme oxygenase

Structural highlights

1wzd is a 2 chain structure with sequence from "bacillus_diphtheriae"_kruse_in_flugge_1886 "bacillus diphtheriae" kruse in flugge 1886. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	1iw0, 1iw1, 1v8x, 1wzf, 1wzg
Activity:	Heme oxygenase, with EC number 1.14.99.3
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[HMUO_CORDI] Allows the bacteria to use the host heme as an iron source. Involved in the oxidation of heme and subsequent release of iron from the heme moiety.

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

Protein-to-protein electron transfer (ET) is a critical process in biological chemistry for which fundamental understanding is expected to provide a wealth of applications in biotechnology. Investigations of protein-protein ET systems in reductive activation of artificial cofactors introduced into proteins remains particularly challenging because of the complexity of interactions between the cofactor and the system contributing to ET. In this work, we construct an artificial protein-protein ET system, using heme oxygenase (HO), which is known to catalyze the conversion of heme to biliverdin. HO uses electrons provided from NADPH/cytochrome P450 reductase (CPR) through protein-protein complex formation during the enzymatic reaction. We report that a Fe(III)(Schiff-base), in the place of the active-site heme prosthetic group of HO, can be reduced by NADPH/CPR. The crystal structure of the Fe(10-CH(2)CH(2)COOH-Schiff-base).HO composite indicates the presence of a hydrogen bond between the propionic acid carboxyl group and Arg-177 of HO. Furthermore, the ET rate from NADPH/CPR to the composite is 3.5-fold faster than that of Fe(Schiff-base).HO, although the redox potential of Fe(10-CH(2)CH(2)COOH-Schiff-base).HO (-79 mV vs. NHE) is lower than that of Fe(Schiff-base).HO (+15 mV vs. NHE), where NHE is normal hydrogen electrode. This work describes a synthetic metal complex activated by means of a protein-protein ET system, which has not previously been reported. Moreover, the result suggests the importance of the hydrogen bond for the ET reaction of HO. Our Fe(Schiff-base).HO composite model system may provide insights with regard to design of ET biosystems for sensors, catalysts, and electronics devices.

Design of metal cofactors activated by a protein-protein electron transfer system.,Ueno T, Yokoi N, Unno M, Matsui T, Tokita Y, Yamada M, Ikeda-Saito M, Nakajima H, Watanabe Y Proc Natl Acad Sci U S A. 2006 Jun 20;103(25):9416-21. Epub 2006 Jun 12. PMID:16769893^[1]

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

References

↑ Ueno T, Yokoi N, Unno M, Matsui T, Tokita Y, Yamada M, Ikeda-Saito M, Nakajima H, Watanabe Y. Design of metal cofactors activated by a protein-protein electron transfer system. Proc Natl Acad Sci U S A. 2006 Jun 20;103(25):9416-21. Epub 2006 Jun 12. PMID:16769893

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/1wzd"

@@ Line 2: / Line 2: @@
 <StructureSection load='1wzd' size='340' side='right' caption='[[1wzd]], [[Resolution|resolution]] 1.35&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1wzd]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Corynebacterium_diphtheriae Corynebacterium diphtheriae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WZD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WZD FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1wzd]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_diphtheriae"_kruse_in_flugge_1886 "bacillus diphtheriae" kruse in flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WZD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WZD FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=YOK:[[2,2-[4-CARBOXYETHYL-1,2-PHENYLENEBIS(NITRILOMETHYLIDYNE)]BIS[PHENOLATO]](2-)-N,N,O,O]-IRON'>YOK</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1iw0|1iw0]], [[1iw1|1iw1]], [[1v8x|1v8x]], [[1wzf|1wzf]], [[1wzg|1wzg]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Heme_oxygenase Heme oxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.99.3 1.14.99.3] </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=1wzd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wzd OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1wzd RCSB], [http://www.ebi.ac.uk/pdbsum/1wzd 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=1wzd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wzd OCA], [http://pdbe.org/1wzd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1wzd RCSB], [http://www.ebi.ac.uk/pdbsum/1wzd PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1wzd" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 35: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Corynebacterium diphtheriae]]
+[[Category: Bacillus diphtheriae kruse in flugge 1886]]
 [[Category: Heme oxygenase]]
 [[Category: Ikeda-Saito, M]]

1wzd

From Proteopedia

Revision as of 13:22, 10 September 2015

Crystal Structure Of An Artificial Metalloprotein: Fe(10-CH2CH2COOH-Salophen)/Wild Type Heme oxygenase

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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