1D2H:
reference: Mechanisms for auto-inhibition and forced product release in glycine N-methyltransferase: crystal structures of wild-type, mutant R175K and S-adenosylhomocysteine-bound R175K enzymes., Huang Y, Komoto J, Konishi K, Takata Y, Ogawa H, Gomi T, Fujioka M, Takusagawa F, J Mol Biol 2000 Apr 21;298(1):149-62. PMID: 10756111

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