3U0O:
reference: Structural insights into the catalytic mechanism of Escherichia coli selenophosphate synthetase., Noinaj N, Wattanasak R, Lee DY, Wally JL, Piszczek G, Chock PB, Stadtman TC, Buchanan SK, J Bacteriol. 2012 Jan;194(2):499-508. Epub 2011 Nov 11. PMID: 22081394

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