4hhg
From Proteopedia
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| - | + | ==Crystal structure of the Pseudomonas aeruginosa azurin, RuH107NO YOH109== | |
| - | === | + | <StructureSection load='4hhg' size='340' side='right' caption='[[4hhg]], [[Resolution|resolution]] 1.60Å' scene=''> |
| - | + | == Structural highlights == | |
| + | <table><tr><td colspan='2'>[[4hhg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa_pao1 Pseudomonas aeruginosa pao1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HHG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HHG FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=DRU:DELTA-BIS(2,2-BIPYRIDINE)IMIDAZOLE+RUTHENIUM+(II)'>DRU</scene></td></tr> | ||
| + | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NIY:META-NITRO-TYROSINE'>NIY</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">azu, PA4922 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=208964 Pseudomonas aeruginosa PAO1])</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=4hhg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hhg OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4hhg RCSB], [http://www.ebi.ac.uk/pdbsum/4hhg PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | We have designed ruthenium-modified Pseudomonas aeruginosa azurins that incorporate 3-nitrotyrosine (NO2YOH) between Ru(2,2'-bipyridine)2(imidazole)(histidine) and Cu redox centers in electron transfer (ET) pathways. We investigated the structures and reactivities of three different systems: RuH107NO2YOH109, RuH124NO2YOH122, and RuH126NO2YOH122. RuH107NO2YOH109, unlabeled H124NO2YOH122, and unlabeled H126NO2YOH122 were structurally characterized. The pKa's of NO2YOH at positions 122 and 109 are 7.2 and 6.0, respectively. Reduction potentials of 3-nitrotyrosinate (NO2YO-)-modified azurins were estimated from cyclic and differential pulse voltammetry data: oxidation of NO2YO-122 occurs near 1.1 versus NHE; oxidation of NO2YO-109 is near 1.2 V. Our analysis of transient optical spectroscopic experiments indicates that hopping via NO2YO- enhances CuI oxidation rates over single-step ET by factors of 32 (RuH107NO2YO-109), 46 (RuH126NO2YO-122), and 13 (RuH124NO2YO-122). | ||
| - | + | Electron Flow through Nitrotyrosinate in Pseudomonas aeruginosa Azurin.,Warren JJ, Herrera N, Hill MG, Winkler JR, Gray HB J Am Chem Soc. 2013 Jul 16. PMID:23859602<ref>PMID:23859602</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | == | + | ==See Also== |
| - | + | *[[Azurin|Azurin]] | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Pseudomonas aeruginosa pao1]] | [[Category: Pseudomonas aeruginosa pao1]] | ||
| - | [[Category: Gray, H B | + | [[Category: Gray, H B]] |
| - | [[Category: Herrera, N | + | [[Category: Herrera, N]] |
| - | [[Category: Warren, J J | + | [[Category: Warren, J J]] |
[[Category: Electron transfer]] | [[Category: Electron transfer]] | ||
[[Category: Electron transport]] | [[Category: Electron transport]] | ||
[[Category: Greek key]] | [[Category: Greek key]] | ||
[[Category: Nitrosylated]] | [[Category: Nitrosylated]] | ||
Revision as of 12:01, 21 December 2014
Crystal structure of the Pseudomonas aeruginosa azurin, RuH107NO YOH109
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