1as8: Difference between revisions
New page: left|200px<br /> <applet load="1as8" size="450" color="white" frame="true" align="right" spinBox="true" caption="1as8, resolution 1.85Å" /> '''STRUCTURE OF NITRIT... |
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==About this Structure== | ==About this Structure== | ||
1AS8 is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Alcaligenes_faecalis Alcaligenes faecalis]] with CU and NO2 as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/ ]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.7.99.3 1.7.99.3]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1AS8 OCA]]. | 1AS8 is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Alcaligenes_faecalis Alcaligenes faecalis]] with CU and NO2 as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/Oxidoreductase Oxidoreductase]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.7.99.3 1.7.99.3]]. Structure known Active Sites: CU1, CU2, CU3, CU4, CU5 and CU6. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1AS8 OCA]]. | ||
==Reference== | ==Reference== | ||
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[[Category: oxidoreductase]] | [[Category: oxidoreductase]] | ||
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Revision as of 09:20, 30 October 2007
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STRUCTURE OF NITRITE BOUND TO REDUCED ALCALIGENES FAECALIS NITRITE REDUCTASE AT CRYO TEMPERATURE
OverviewOverview
The structures of oxidized, reduced, nitrite-soaked oxidized and, nitrite-soaked reduced nitrite reductase from Alcaligenes faecalis have, been determined at 1.8-2.0 A resolution using data collected at -160, degrees C. The active site at cryogenic temperature, as at room, temperature, contains a tetrahedral type II copper site liganded by three, histidines and a water molecule. The solvent site is empty when crystals, are reduced with ascorbate. A fully occupied oxygen-coordinate nitrite, occupies the solvent site in crystals soaked in nitrite. Ascorbate-reduced, crystals soaked in a glycerol-methanol solution and nitrite at -40 degrees, C remain colorless at -160 degrees C but turn amber-brown when warmed, suggesting that NO is released. Nitrite is found at one-half occupancy., Five new ... [(full description)]
About this StructureAbout this Structure
1AS8 is a [Single protein] structure of sequence from [Alcaligenes faecalis] with CU and NO2 as [ligands]. Active as [Oxidoreductase], with EC number [1.7.99.3]. Structure known Active Sites: CU1, CU2, CU3, CU4, CU5 and CU6. Full crystallographic information is available from [OCA].
ReferenceReference
Structure of nitrite bound to copper-containing nitrite reductase from Alcaligenes faecalis. Mechanistic implications., Murphy ME, Turley S, Adman ET, J Biol Chem. 1997 Nov 7;272(45):28455-60. PMID:9353305
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