6ff5: Difference between revisions
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==X-ray structure of bovine heart cytochrome c at high ionic strength== | ==X-ray structure of bovine heart cytochrome c at high ionic strength== | ||
<StructureSection load='6ff5' size='340' side='right' caption='[[6ff5]], [[Resolution|resolution]] 1.74Å' scene=''> | <StructureSection load='6ff5' size='340' side='right'caption='[[6ff5]], [[Resolution|resolution]] 1.74Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[6ff5]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[6ff5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FF5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6FF5 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.74Å</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6ff5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ff5 OCA], [https://pdbe.org/6ff5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ff5 RCSB], [https://www.ebi.ac.uk/pdbsum/6ff5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ff5 ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/CYC_BOVIN CYC_BOVIN] 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). | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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</div> | </div> | ||
<div class="pdbe-citations 6ff5" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 6ff5" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Cytochrome C 3D structures|Cytochrome C 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Merlino A]] | ||
Latest revision as of 12:55, 23 October 2024
X-ray structure of bovine heart cytochrome c at high ionic strengthX-ray structure of bovine heart cytochrome c at high ionic strength
Structural highlights
FunctionCYC_BOVIN 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). Publication Abstract from PubMedBovine heart cytochrome c (bCyt c) is an extensively studied hemoprotein of only 104 residues. Due to the existence of isoforms generated by non-enzymatic deaminidation, crystallization of bCyt c is difficult and involves extensive purification and the use of microseeding or the presence of an electric field. Taking advantage of the capacity of cytochrome c (cyt c) to bind anions on its protein surface, the commercially available bCyt c was crystallized without extra purifications, using ammonium sulfate as precipitant and nitrate ions as additives. The structure of the ferric bCyt c in a new crystal form is described and compared with that previously solved at low ionic strength and with those of human and horse cyt c. The overall structure of bCyt c is conserved, while the side chains of several residues that play a role in the interactions of cyt c with its partners have different rotamers in the two structures. The effect of the presence of nitrate ions on the structure of the protein is then evaluated and compared with that observed in the case of ferrous and ferric horse heart cyt c. X-ray structure of bovine heart cytochrome c at high ionic strength.,Merlino A Biometals. 2018 Mar 7. pii: 10.1007/s10534-018-0090-x. doi:, 10.1007/s10534-018-0090-x. PMID:29516298[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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