2VF2:
reference: Structure of HsaD, a steroid-degrading hydrolase, from Mycobacterium tuberculosis., Lack N, Lowe ED, Liu J, Eltis LD, Noble ME, Sim E, Westwood IM, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Jan 1;64(Pt 1):2-7., Epub 2007 Dec 20. PMID: 18097091

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