5lyc: Difference between revisions
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==Cytochrome c in complex with phosphonato-calix[6]arene== | |||
<StructureSection load='5lyc' size='340' side='right'caption='[[5lyc]], [[Resolution|resolution]] 1.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5lyc]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5LYC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5LYC FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7AZ:PHOSPHONATO-CALIX[6]ARENE'>7AZ</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</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=5lyc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5lyc OCA], [https://pdbe.org/5lyc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5lyc RCSB], [https://www.ebi.ac.uk/pdbsum/5lyc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5lyc ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/CYC1_YEAST CYC1_YEAST] 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. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Complex formation between cationic cytochrome c and the water-soluble, poly-anionic p-phosphonatocalix[6]arene (pclx6 ) was investigated. A crystal structure (at 1.8 A resolution) revealed a remarkable dimeric disc of pclx6 that acts like glue to mediate a symmetric (C2 ) protein dimer. The calixarene disc has a diameter of about 1.5 nm and masks about 360 A2 of protein surface. The key protein-calixarene contacts occur via two linchpin lysines, with additional contacts provided by a small hydrophobic patch. The protein-calixarene supramolecular assemblies were observed in solution by size-exclusion chromatography with multi-angle light scattering and NMR spectroscopy. Using isothermal titration calorimetry and NMR data, an apparent Kd in the low micromolar range was determined for the charge-rich protein-calixarene complex. In contrast to p-sulfonatocalix[4]arene, the larger pclx6 has a single, well-defined binding site that mediates the assembly of cytochrome c in solution. | |||
Protein Dimerization on a Phosphonated Calix[6]arene Disc.,Rennie ML, Doolan AM, Raston CL, Crowley PB Angew Chem Int Ed Engl. 2017 May 8;56(20):5517-5521. doi: 10.1002/anie.201701500., Epub 2017 Apr 13. PMID:28407337<ref>PMID:28407337</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: Crowley | <div class="pdbe-citations 5lyc" style="background-color:#fffaf0;"></div> | ||
[[Category: Rennie | |||
==See Also== | |||
*[[Cytochrome C 3D structures|Cytochrome C 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Saccharomyces cerevisiae S288C]] | |||
[[Category: Crowley PB]] | |||
[[Category: Rennie ML]] | |||
Latest revision as of 10:56, 25 October 2023
Cytochrome c in complex with phosphonato-calix[6]arene
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