1PFW:
reference: Use of analogues of methionine and methionyl adenylate to sample conformational changes during catalysis in Escherichia coli methionyl-tRNA synthetase., Crepin T, Schmitt E, Mechulam Y, Sampson PB, Vaughan MD, Honek JF, Blanquet S, J Mol Biol 2003 Sep 5;332(1):59-72. PMID: 12946347

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