3oqr
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 3oqr is ON HOLD Authors: Lancaster, K.M., Gray, H.B. Description: C112D/M121E Azurin, pH 10.0 ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ...) |
|||
| (8 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==C112D/M121E Azurin, pH 10.0== | |
| + | <StructureSection load='3oqr' size='340' side='right'caption='[[3oqr]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3oqr]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3OQR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3OQR 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]] 2.4Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</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=3oqr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3oqr OCA], [https://pdbe.org/3oqr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3oqr RCSB], [https://www.ebi.ac.uk/pdbsum/3oqr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3oqr ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/AZUR_PSEAE AZUR_PSEAE] Transfers electrons from cytochrome c551 to cytochrome oxidase. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Redox and spectroscopic (electronic absorption, multifrequency electron paramagnetic resonance (EPR), and X-ray absorption) properties together with X-ray crystal structures are reported for the type 2 Cu(II) C112D/M121E variant of Pseudomonas aeruginosa azurin. The results suggest that Cu(II) is constrained from interaction with the proximal glutamate; this structural frustration implies a "rack" mechanism for the 290 mV (vs NHE) reduction potential measured at neutral pH. At high pH ( approximately 9), hydrogen bonding in the outer coordination sphere is perturbed to allow axial glutamate ligation to Cu(II), with a decrease in potential to 119 mV. These results highlight the role played by outer-sphere interactions, and the structural constraints they impose, in determining the redox behavior of transition metal protein cofactors. | ||
| - | + | Outer-Sphere Effects on Reduction Potentials of Copper Sites in Proteins: The Curious Case of High Potential Type 2 C112D/M121E Pseudomonas aeruginosa Azurin.,Lancaster KM, Sproules S, Palmer JH, Richards JH, Gray HB J Am Chem Soc. 2010 Sep 29. PMID:20879734<ref>PMID:20879734</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 3oqr" style="background-color:#fffaf0;"></div> | ||
| - | + | ==See Also== | |
| + | *[[Azurin 3D structures|Azurin 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Pseudomonas aeruginosa]] | ||
| + | [[Category: Gray HB]] | ||
| + | [[Category: Lancaster KM]] | ||
Current revision
C112D/M121E Azurin, pH 10.0
| |||||||||||
