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3asn

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Revision as of 20:49, 4 August 2016

Bovine heart cytochrome C oxidase in the fully oxidized state measured at 1.7470 angstrom wavelength

Structural highlights

3asn is a 26 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , , , , , , , , ,
NonStd Res:	, ,
Related:	1occ, 1ocz, 1oco, 1ocr, 2occ, 1v54, 1v55, 2dyr, 2dys, 2eij, 2eik, 2eil, 2eim, 2ein, 2zxw, 3abk, 3abl, 3abm, 3ag1, 3ag2, 3ag3, 3ag4, 3aso
Activity:	Cytochrome-c oxidase, with EC number 1.9.3.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[COX5B_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [COX7B_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [COX3_BOVIN] Subunits I, II and III form the functional core of the enzyme complex. [CX6A2_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [COX6C_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [COX2_BOVIN] Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. Subunit 2 transfers the electrons from cytochrome c via its binuclear copper A center to the bimetallic center of the catalytic subunit 1. [COX7C_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [CX6B1_BOVIN] Connects the two COX monomers into the physiological dimeric form. [COX1_BOVIN] Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B. [COX41_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [CX7A1_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [COX8B_BOVIN] This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. [COX5A_BOVIN] This is the heme A-containing chain of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport.

Publication Abstract from PubMed

Fully oxidized cytochrome c oxidase (CcO) under enzymatic turnover is capable of pumping protons, while fully oxidized CcO as isolated is not able to do so upon one-electron reduction. The functional difference is expected to be a consequence of structural differences: [Fe(3+)-OH(-)] under enzymatic turnover versus [Fe(3+)-O(2)(2-)-Cu(2+)] for the as-isolated CcO. However, the electron density for O(2)(2-) is equally assignable to Cl(-). An anomalous dispersion analysis was performed in order to conclusively demonstrate the absence of Cl(-) between the Fe(3+) and Cu(2+). Thus, the peroxide moiety receives electron equivalents from cytochrome c without affecting the oxidation states of the metal sites. The metal-site reduction is coupled to the proton pump.

Distinguishing between Cl- and O2(2-) as the bridging element between Fe3+ and Cu2+ in resting-oxidized cytochrome c oxidase.,Suga M, Yano N, Muramoto K, Shinzawa-Itoh K, Maeda T, Yamashita E, Tsukihara T, Yoshikawa S Acta Crystallogr D Biol Crystallogr. 2011 Aug;67(Pt 8):742-4. Epub 2011 Jul 12. PMID:21795816^[1]

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

References

↑ Suga M, Yano N, Muramoto K, Shinzawa-Itoh K, Maeda T, Yamashita E, Tsukihara T, Yoshikawa S. Distinguishing between Cl- and O2(2-) as the bridging element between Fe3+ and Cu2+ in resting-oxidized cytochrome c oxidase. Acta Crystallogr D Biol Crystallogr. 2011 Aug;67(Pt 8):742-4. Epub 2011 Jul 12. PMID:21795816 doi:10.1107/S0907444911022803

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3asn"

@@ Line 1: / Line 1: @@
 ==Bovine heart cytochrome C oxidase in the fully oxidized state measured at 1.7470 angstrom wavelength==
 <StructureSection load='3asn' size='340' side='right' caption='[[3asn]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
@@ Line 7: / Line 8: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1occ|1occ]], [[1ocz|1ocz]], [[1oco|1oco]], [[1ocr|1ocr]], [[2occ|2occ]], [[1v54|1v54]], [[1v55|1v55]], [[2dyr|2dyr]], [[2dys|2dys]], [[2eij|2eij]], [[2eik|2eik]], [[2eil|2eil]], [[2eim|2eim]], [[2ein|2ein]], [[2zxw|2zxw]], [[3abk|3abk]], [[3abl|3abl]], [[3abm|3abm]], [[3ag1|3ag1]], [[3ag2|3ag2]], [[3ag3|3ag3]], [[3ag4|3ag4]], [[3aso|3aso]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cytochrome-c_oxidase Cytochrome-c oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.9.3.1 1.9.3.1] </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=3asn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3asn OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3asn RCSB], [http://www.ebi.ac.uk/pdbsum/3asn 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=3asn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3asn OCA], [http://pdbe.org/3asn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3asn RCSB], [http://www.ebi.ac.uk/pdbsum/3asn PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3asn ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3asn" style="background-color:#fffaf0;"></div>
 ==See Also==

3asn

From Proteopedia

Revision as of 20:49, 4 August 2016

Bovine heart cytochrome C oxidase in the fully oxidized state measured at 1.7470 angstrom wavelength

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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