1AYX:
reference: Structure of glucoamylase from Saccharomycopsis fibuligera at 1.7 A resolution., Sevcik J, Solovicova A, Hostinova E, Gasperik J, Wilson KS, Dauter Z, Acta Crystallogr D Biol Crystallogr 1998 Sep 1;54 ( Pt 5):854-66. PMID: 9757101

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