1TJ7:
reference: Structure determination and refinement at 2.44 A resolution of argininosuccinate lyase from Escherichia coli., Bhaumik P, Koski MK, Bergmann U, Wierenga RK, Acta Crystallogr D Biol Crystallogr. 2004 Nov;60(Pt 11):1964-70. Epub 2004, Oct 20. PMID: 15502303

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