1PJH:
reference: Structural studies on delta(3)-delta(2)-enoyl-CoA isomerase: the variable mode of assembly of the trimeric disks of the crotonase superfamily., Mursula AM, Hiltunen JK, Wierenga RK, FEBS Lett 2004 Jan 16;557(1-3):81-7. PMID: 14741345

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