2v3a
From Proteopedia
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==Overview== | ==Overview== | ||
| - | Crude oil spills represent a major ecological threat because of the | + | Crude oil spills represent a major ecological threat because of the chemical inertness of the constituent n-alkanes. The Gram-negative bacterium Pseudomonas aeruginosa is one of the few bacterial species able to metabolize such compounds. Three chromosomal genes, rubB, rubA1, and rubA2 coding for an NAD(P)H:rubredoxin reductase (RdxR) and two rubredoxins (Rdxs) are indispensable for this ability. They constitute an electron transport (ET) pathway that shuttles reducing equivalents from carbon metabolism to the membrane-bound alkane hydroxylases AlkB1 and AlkB2. The RdxR-Rdx system also is crucial as part of the oxidative stress response in archaea or anaerobic bacteria. The redox couple has been analyzed in detail as a model system for ET processes. We have solved the structure of RdxR of P. aeruginosa both alone and in complex with Rdx, without the need for cross-linking, and both structures were refined at 2.40- and 2.45-A resolution, respectively. RdxR consists of two cofactor-binding domains and a C-terminal domain essential for the specific recognition of Rdx. Only a small number of direct interactions govern mutual recognition of RdxR and Rdx, corroborating the transient nature of the complex. The shortest distance between the redox centers is observed to be 6.2 A. |
==About this Structure== | ==About this Structure== | ||
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[[Category: Pseudomonas aeruginosa]] | [[Category: Pseudomonas aeruginosa]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| - | [[Category: Adams, T | + | [[Category: Adams, T M.]] |
[[Category: Hagelueken, G.]] | [[Category: Hagelueken, G.]] | ||
| - | [[Category: Heinz, D | + | [[Category: Heinz, D W.]] |
[[Category: Kolmar, H.]] | [[Category: Kolmar, H.]] | ||
[[Category: Schubert, W-.D.]] | [[Category: Schubert, W-.D.]] | ||
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[[Category: rubredoxin reductase]] | [[Category: rubredoxin reductase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 18:52:55 2008'' |
Revision as of 16:53, 21 February 2008
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CRYSTAL STRUCTURE OF RUBREDOXIN REDUCTASE FROM PSEUDOMONAS AERUGINOSA.
Overview
Crude oil spills represent a major ecological threat because of the chemical inertness of the constituent n-alkanes. The Gram-negative bacterium Pseudomonas aeruginosa is one of the few bacterial species able to metabolize such compounds. Three chromosomal genes, rubB, rubA1, and rubA2 coding for an NAD(P)H:rubredoxin reductase (RdxR) and two rubredoxins (Rdxs) are indispensable for this ability. They constitute an electron transport (ET) pathway that shuttles reducing equivalents from carbon metabolism to the membrane-bound alkane hydroxylases AlkB1 and AlkB2. The RdxR-Rdx system also is crucial as part of the oxidative stress response in archaea or anaerobic bacteria. The redox couple has been analyzed in detail as a model system for ET processes. We have solved the structure of RdxR of P. aeruginosa both alone and in complex with Rdx, without the need for cross-linking, and both structures were refined at 2.40- and 2.45-A resolution, respectively. RdxR consists of two cofactor-binding domains and a C-terminal domain essential for the specific recognition of Rdx. Only a small number of direct interactions govern mutual recognition of RdxR and Rdx, corroborating the transient nature of the complex. The shortest distance between the redox centers is observed to be 6.2 A.
About this Structure
2V3A is a Single protein structure of sequence from Pseudomonas aeruginosa with , and as ligands. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Crystal structure of the electron transfer complex rubredoxin rubredoxin reductase of Pseudomonas aeruginosa., Hagelueken G, Wiehlmann L, Adams TM, Kolmar H, Heinz DW, Tummler B, Schubert WD, Proc Natl Acad Sci U S A. 2007 Jul 24;104(30):12276-81. Epub 2007 Jul 16. PMID:17636129
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