1rcy
From Proteopedia
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RUSTICYANIN (RC) FROM THIOBACILLUS FERROOXIDANS
Overview
The X-ray crystal structure of the oxidized form of the extremely stable, and highly oxidizing cupredoxin rusticyanin from Thiobacillus ferrooxidans, has been determined by the method of multiwavelength anomalous diffraction, (MAD) and refined to 1.9 A resolution. Like other cupredoxins, rusticyanin, is a copper-containing metalloprotein, which is composed of a core, beta-sandwich fold. In rusticyanin the beta-sandwich is composed of a six-, and a seven-stranded beta-sheet. Also like other cupredoxins, the copper, ion is coordinated by a cluster of four conserved residues (His85, Cys138, His143, Met148) arranged in a distorted tetrahedron. Rusticyanin has a, redox potential of 680 mV, roughly twice that of any other cupredoxin, and, it is optimally active at pH values < or = 2. By ... [(full description)]
About this Structure
1RCY is a [Single protein] structure of sequence from [Thiobacillus ferrooxidans] with CU as [ligand]. Full crystallographic information is available from [OCA].
Reference
Multiple wavelength anomalous diffraction (MAD) crystal structure of rusticyanin: a highly oxidizing cupredoxin with extreme acid stability., Walter RL, Ealick SE, Friedman AM, Blake RC 2nd, Proctor P, Shoham M, J Mol Biol. 1996 Nov 15;263(5):730-51. PMID:8947572
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