1giw

From Proteopedia

(Difference between revisions)

Revision as of 22:58, 24 December 2014

SOLUTION STRUCTURE OF REDUCED HORSE HEART CYTOCHROME C, NMR, MINIMIZED AVERAGE STRUCTURE

Structural highlights

1giw is a 1 chain structure with sequence from Equus caballus. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2giw
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[CYC_HORSE] Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain. Plays a role in apoptosis. Suppression of the anti-apoptotic members or activation of the pro-apoptotic members of the Bcl-2 family leads to altered mitochondrial membrane permeability resulting in release of cytochrome c into the cytosol. Binding of cytochrome c to Apaf-1 triggers the activation of caspase-9, which then accelerates apoptosis by activating other caspases (By similarity).

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

In the frame of a broad study on the structural differences between the two redox forms of cytochromes to be related to the electron transfer process, the NMR solution structure of horse heart cytochrome c in the reduced form has been determined. The structural data obtained in the present work are compared to those already available in the literature on the same protein and the presence of conformational differences is discussed in the light of the experimental method employed for the structure determination. Redox-state dependent changes are analyzed and in particular they are related to the role of propionate-7 of the heme. Also some hydrogen bonds are changed upon reduction of the heme iron. A substantial similarity is observed for the backbone fold, independently of the oxidation state. At variance, some meaningful differences are observed in the orientation of a few side chains. These changes are related to those found in the case of the highly homologous cytochrome c from Saccharomyces cerevisiae. The exchangeability of the NH protons has been investigated and found to be smaller than in the case of the oxidized protein. We think that this is a characteristic of reduced cytochromes and that mobility is a medium for molecular recognition in vivo.

Solution structure of reduced horse heart cytochrome c.,Banci L, Bertini I, Huber JG, Spyroulias GA, Turano P J Biol Inorg Chem. 1999 Feb;4(1):21-31. PMID:10499099^[1]

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

References

↑ Banci L, Bertini I, Huber JG, Spyroulias GA, Turano P. Solution structure of reduced horse heart cytochrome c. J Biol Inorg Chem. 1999 Feb;4(1):21-31. PMID:10499099

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/1giw"

@@ Line 7: / Line 7: @@
 <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=1giw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1giw OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1giw RCSB], [http://www.ebi.ac.uk/pdbsum/1giw PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/CYC_HORSE CYC_HORSE]] Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain.  Plays a role in apoptosis. Suppression of the anti-apoptotic members or activation of the pro-apoptotic members of the Bcl-2 family leads to altered mitochondrial membrane permeability resulting in release of cytochrome c into the cytosol. Binding of cytochrome c to Apaf-1 triggers the activation of caspase-9, which then accelerates apoptosis by activating other caspases (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1giw

From Proteopedia

Revision as of 22:58, 24 December 2014

SOLUTION STRUCTURE OF REDUCED HORSE HEART CYTOCHROME C, NMR, MINIMIZED AVERAGE STRUCTURE

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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