1vck

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{{STRUCTURE_1vck| PDB=1vck | SCENE= }}
{{STRUCTURE_1vck| PDB=1vck | SCENE= }}
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'''Crystal structure of ferredoxin component of carbazole 1,9a-dioxygenase of Pseudomonas resinovorans strain CA10'''
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===Crystal structure of ferredoxin component of carbazole 1,9a-dioxygenase of Pseudomonas resinovorans strain CA10===
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==Overview==
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The carbazole 1,9a-dioxygenase (CARDO) system of Pseudomonas resinovorans strain CA10 catalyzes the dioxygenation of carbazole; the 9aC carbon bonds to a nitrogen atom and its adjacent 1C carbon as the initial reaction in the mineralization pathway. The CARDO system is composed of ferredoxin reductase (CarAd), ferredoxin (CarAc), and terminal oxygenase (CarAa). CarAc acts as a mediator in the electron transfer from CarAd to CarAa. To understand the structural basis of the protein-protein interactions during electron transport in the CARDO system, the crystal structure of CarAc was determined at 1.9 A resolution by molecular replacement using the structure of BphF, the biphenyl 2,3-dioxygenase ferredoxin from Burkholderia cepacia strain LB400 as a search model. CarAc is composed of three beta-sheets, and the structure can be divided into two domains, a cluster-binding domain and a basal domain. The Rieske [2Fe-2S] cluster is located at the tip of the cluster-binding domain, where it is exposed to solvent. While the overall folding of CarAc and BphF is strongly conserved, the properties of their surfaces are very different from each other. The structure of the cluster-binding domain of CarAc is more compact and protruding than that of BphF, and the distribution of electric charge on its molecular surface is very different. Such differences are thought to explain why these ferredoxins can act as electron mediators in respective electron transport chains composed of different-featured components.
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(as it appears on PubMed at http://www.pubmed.gov), where 15645447 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15645447}}
==About this Structure==
==About this Structure==
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[[Category: Rieske non-heme iron oxygenase system]]
[[Category: Rieske non-heme iron oxygenase system]]
[[Category: Rieske-type ferredoxin]]
[[Category: Rieske-type ferredoxin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 05:43:16 2008''

Revision as of 02:43, 28 July 2008

Image:1vck.png

Template:STRUCTURE 1vck

Crystal structure of ferredoxin component of carbazole 1,9a-dioxygenase of Pseudomonas resinovorans strain CA10

Template:ABSTRACT PUBMED 15645447

About this Structure

1VCK is a Single protein structure of sequence from Pseudomonas resinovorans. Full crystallographic information is available from OCA.

Reference

Crystal structure of the ferredoxin component of carbazole 1,9a-dioxygenase of Pseudomonas resinovorans strain CA10, a novel Rieske non-heme iron oxygenase system., Nam JW, Noguchi H, Fujimoto Z, Mizuno H, Ashikawa Y, Abo M, Fushinobu S, Kobashi N, Wakagi T, Iwata K, Yoshida T, Habe H, Yamane H, Omori T, Nojiri H, Proteins. 2005 Mar 1;58(4):779-89. PMID:15645447

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