1WDW:
reference: Conformational Changes in the Tryptophan Synthase from a Hyperthermophile upon alpha(2)beta(2) Complex Formation: Crystal Structure of the Complex(,)., Lee SJ, Ogasahara K, Ma J, Nishio K, Ishida M, Yamagata Y, Tsukihara T, Yutani K, Biochemistry 2005 Aug 30;44(34):11417-11427. PMID: 16114878

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