2X67:
reference: The ternary complex of PrnB (the second enzyme in pyrrolnitrin biosynthesis pathway), tryptophan and cyanide yields new mechanistic insights into the indolamine dioxygenase superfamily., Zhu X, Van Pee KH, Naismith JH, J Biol Chem. 2010 Apr 26. PMID: 20421301

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