3GYX:
reference: Crystal structure of Adenylylsulfate reductase from Desulfovibrio gigas suggests a potential self-regulation mechanism involving the C terminus of the beta-subunit., Chiang YL, Hsieh YC, Fang JY, Liu EH, Huang YC, Chuankhayan P, Jeyakanthan J, Liu MY, Chan SI, Chen CJ, J Bacteriol. 2009 Dec;191(24):7597-608. Epub 2009 Oct 9. PMID: 19820092

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