1KUF:
reference: The 1.35 A structure of cadmium-substituted TM-3, a snake-venom metalloproteinase from Taiwan habu: elucidation of a TNFalpha-converting enzyme-like active-site structure with a distorted octahedral geometry of cadmium., Huang KF, Chiou SH, Ko TP, Yuann JM, Wang AH, Acta Crystallogr D Biol Crystallogr 2002 Jul;58(Pt 7):1118-28. PMID: 12077431

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