1ULZ:
reference: Structure of the biotin carboxylase subunit of pyruvate carboxylase from Aquifex aeolicus at 2.2 A resolution., Kondo S, Nakajima Y, Sugio S, Yong-Biao J, Sueda S, Kondo H, Acta Crystallogr D Biol Crystallogr 2004 Mar;60(Pt 3):486-92. Epub 2004, Feb 25. PMID: 14993673

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