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1lfm

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Revision as of 04:53, 10 September 2015

CRYSTAL STRUCTURE OF COBALT(III)-SUBSTITUTED CYTOCHROME C (TUNA)

Structural highlights

1lfm is a 2 chain structure with sequence from Thunnus thynnus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1i54, 1i55, 3cyt, 5cyt
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[CYC_THUAA] 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.

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

Replacement of iron with cobalt(III) selectively introduces a deep trap in the folding-energy landscape of the heme protein cytochrome c. Remarkably, neither the protein structure nor the folding thermodynamics is perturbed by this metal-ion substitution, as shown by data from spectroscopic and x-ray diffraction experiments. Through kinetics measurements, we have found parallel folding pathways involving several different misligated Co(III) species, and, as these folding intermediates persist for several hours under certain conditions, we have been able to elucidate fully their spectroscopic properties. The results, along with an analysis of the fluorescence energy-transfer kinetics during refolding, show that rapidly equilibrating populations of compact and extended polypeptide conformations are present until all molecules have reached the native structure. These measurements provide direct evidence that collapsed denatured structures are not substantially more stable than extended conformations of cytochrome c.

Using deeply trapped intermediates to map the cytochrome c folding landscape.,Tezcan FA, Findley WM, Crane BR, Ross SA, Lyubovitsky JG, Gray HB, Winkler JR Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):8626-30. PMID:12084923^[1]

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

References

↑ Tezcan FA, Findley WM, Crane BR, Ross SA, Lyubovitsky JG, Gray HB, Winkler JR. Using deeply trapped intermediates to map the cytochrome c folding landscape. Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):8626-30. PMID:12084923 doi:10.1073/pnas.132254499

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/1lfm"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=COH:PROTOPORPHYRIN+IX+CONTAINING+CO'>COH</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1i54|1i54]], [[1i55|1i55]], [[3cyt|3cyt]], [[5cyt|5cyt]]</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=1lfm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lfm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lfm RCSB], [http://www.ebi.ac.uk/pdbsum/1lfm 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=1lfm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lfm OCA], [http://pdbe.org/1lfm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1lfm RCSB], [http://www.ebi.ac.uk/pdbsum/1lfm PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1lfm" style="background-color:#fffaf0;"></div>
 ==See Also==

1lfm

From Proteopedia

Revision as of 04:53, 10 September 2015

CRYSTAL STRUCTURE OF COBALT(III)-SUBSTITUTED CYTOCHROME C (TUNA)

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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