4HGH:
reference: P450 BM3 crystal structures reveal the role of the charged surface residue Lys/Arg184 in inversion of enantioselective styrene epoxidation., Shehzad A, Panneerselvam S, Linow M, Bocola M, Roccatano D, Mueller-Dieckmann J, Wilmanns M, Schwaneberg U, Chem Commun (Camb). 2013 May 21;49(41):4694-6. doi: 10.1039/c3cc39076d. Epub 2013, Apr 15. PMID: 23589805

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