1akk

From Proteopedia

(Difference between revisions)

Revision as of 20:48, 24 December 2014

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

Structural highlights

1akk 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:
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

The solution structure of oxidized horse heart cytochrome c was obtained at pH 7.0 in 100 mM phosphate buffer from 2278 NOEs and 241 pseudocontact shift constraints. The final structure was refined through restrained energy minimization. A 35-member family, with RMSD values with respect to the average structure of 0.70 +/- 0.11 A and 1.21 +/- 0.14 A for the backbone and all heavy atoms, respectively, and with an average penalty function of 130 +/- 4.0 kJ/mol and 84 +/- 3.7 kJ/mol for NOE and pseudocontact shift constraints, respectively (corresponding to a target function of 0.9 A2 and 0.2 A2), was obtained. The solution structure is somewhat different from that recently reported (Qi et al., 1996) and appears to be similar to the X-ray structure of the same oxidation state (Bushnell et al., 1990). A noticeable difference is a rotation of 17 +/- 8 degrees of the imidazole plane between solid and solution structure. Detailed and accurate structural determinations are important within the frame of the current debate of the structural rearrangements occurring upon oxidation or reduction. From the obtained magnetic susceptibility tensor a separation of the hyperfine shifts into their contact and pseudocontact contributions is derived and compared to that of the analogous isoenzyme from S. cerevisiae and to previous results.

Solution structure of oxidized horse heart cytochrome c.,Banci L, Bertini I, Gray HB, Luchinat C, Reddig T, Rosato A, Turano P Biochemistry. 1997 Aug 12;36(32):9867-77. PMID:9245419^[1]

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

References

↑ Banci L, Bertini I, Gray HB, Luchinat C, Reddig T, Rosato A, Turano P. Solution structure of oxidized horse heart cytochrome c. Biochemistry. 1997 Aug 12;36(32):9867-77. PMID:9245419 doi:10.1021/bi970724w

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/1akk"

@@ Line 6: / Line 6: @@
 <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=1akk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1akk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1akk RCSB], [http://www.ebi.ac.uk/pdbsum/1akk 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]]

1akk

From Proteopedia

Revision as of 20:48, 24 December 2014

SOLUTION STRUCTURE OF OXIDIZED 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?)

Views

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