1ryt

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Image:1ryt.gif

1ryt, resolution 2.1Å

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RUBRERYTHRIN

Overview

We have determined the structure of rubrerythrin, a non-haem iron protein from the anaerobic sulphate-reducing bacterium, Desulfovibrio vulgaris (Hildenborough), by X-ray crystallography. The structure reveals a tetramer of two-domain subunits. Each subunit contains a four-helix bundle surrounding a diiron-oxo site and a C-terminal rubredoxin-like FeS4 domain. The diiron-oxo site contains a larger number of carboxylate ligands and a higher degree of solvent exposure than do those in other diiron-oxo proteins. The four-helix bundle of rubrerythrin closely resembles those of the ferritin and bacterioferritin subunits, suggesting a relationship among these proteins-consistent with the recently demonstrated ferroxidase activity of rubrerythrin.

About this Structure

1RYT is a Single protein structure of sequence from Desulfovibrio vulgaris with as ligand. Full crystallographic information is available from OCA.

Reference

The structure of Desulfovibrio vulgaris rubrerythrin reveals a unique combination of rubredoxin-like FeS4 and ferritin-like diiron domains., deMare F, Kurtz DM Jr, Nordlund P, Nat Struct Biol. 1996 Jun;3(6):539-46. PMID:8646540

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