1rgv

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Crystal Structure of the Ferredoxin from Thauera aromaticaCrystal Structure of the Ferredoxin from Thauera aromatica

Structural highlights

1rgv is a 1 chain structure with sequence from Thauera aromatica K172. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.9Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

O88151_THAAR

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

4-Hydroxybenzoyl-CoA reductase (4-HBCR) is a central enzyme in the metabolism of phenolic compounds in anaerobic bacteria. The enzyme catalyzes the reductive removal of the phenolic hydroxyl group from 4-hydroxybenzoyl-CoA, yielding benzoyl-CoA and water. 4-HBCR belongs to the xanthine oxidase (XO) family of molybdenum enzymes which occur as heterodimers, (alphabetagamma)(2). 4-HBCR contains two molybdopterins, four [2Fe-2S] and two [4Fe-4S] clusters and two FADs. A low-potential Allochromatium vinosum-type ferredoxin containing two [4Fe-4S] clusters serves as an in vivo electron donor for 4-HBCR. In this work, the oxygen-sensitive proteins 4-HBCR and the ferredoxin (TaFd) from Thauera aromatica were crystallized under anaerobic conditions. 4-HBCR crystallized with PEG 4000 and MPD as precipitant diffracted to about 1.6 A resolution and the crystals were highly suitable for X-ray structure analysis. Crystals of TaFd were obtained with (NH(4))(3)PO(4) as precipitant and revealed a solvent content of 77%, which is remarkably high for a small soluble protein. The structure of TaFd was solved at 2.9 A resolution by the molecular-replacement method using the highly related structure of the ferredoxin (CvFd) from A. vinosum as a model. Structural changes between the two ferredoxins around the [4Fe-4S] cluster can be correlated with their different redox potentials.

Crystallization of 4-hydroxybenzoyl-CoA reductase and the structure of its electron donor ferredoxin.,Unciuleac M, Boll M, Warkentin E, Ermler U Acta Crystallogr D Biol Crystallogr. 2004 Feb;60(Pt 2):388-91. Epub 2004, Jan 23. PMID:14747735[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Unciuleac M, Boll M, Warkentin E, Ermler U. Crystallization of 4-hydroxybenzoyl-CoA reductase and the structure of its electron donor ferredoxin. Acta Crystallogr D Biol Crystallogr. 2004 Feb;60(Pt 2):388-91. Epub 2004, Jan 23. PMID:14747735 doi:10.1107/S0907444903028506

1rgv, resolution 2.90Å

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