1I7S:
reference: The structures of anthranilate synthase of Serratia marcescens crystallized in the presence of (i) its substrates, chorismate and glutamine, and a product, glutamate, and (ii) its end-product inhibitor, L-tryptophan., Spraggon G, Kim C, Nguyen-Huu X, Yee MC, Yanofsky C, Mills SE, Proc Natl Acad Sci U S A 2001 May 22;98(11):6021-6. PMID: 11371633

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