3CMR:
reference: Arginine coordination in enzymatic phosphoryl transfer: evaluation of the effect of Arg166 mutations in Escherichia coli alkaline phosphatase., O'Brien PJ, Lassila JK, Fenn TD, Zalatan JG, Herschlag D, Biochemistry. 2008 Jul 22;47(29):7663-72. PMID: 18627128

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