>1VZZ_1|Chains A, B|STEROID DELTA-ISOMERASE|PSEUDOMONAS PUTIDA (303) MNLPTAQEVQGLMARYIELVDVGDIEAIVQMFADDATVEDPFGQPPIHGREQIAAFYRQGLGGGKVRACLTGPVRASHNGCGAMPFRVEMVWNGQPCALDVILVMRFDEHGRIQTMQAYWSEVNLSVREPQ