1CBK:
reference: The structure and function of the 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase from Haemophilus influenzae., Hennig M, Dale GE, D'arcy A, Danel F, Fischer S, Gray CP, Jolidon S, Muller F, Page MG, Pattison P, Oefner C, J Mol Biol 1999 Mar 26;287(2):211-9. PMID: 10080886

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