Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/1W06
ISOPENICILLIN N SYNTHETASEDELTA-(L-ALPHA-AMINOADIPOYL)-L-CYSTEINYL-D-ALANINEFE (II) IONHYDROXYAMINESULFATE ION
isopenicillin n synthasecysteinylalaninefecomplex
https://www.ncbi.nlm.nih.gov/Structure/pdb/1ODN
ISOPENICILLIN N SYNTHASE6-(5-AMINO-5-CARBOXY-PENTANOYLAMINO)-3-HYDROXYMETHYL-7-OXO-4-THIA-1-AZA-BICYCLO[3.2.0]HEPTANE-2-CARBOXYLIC ACIDFE (II) IONSULFATE ION
isopenicillin n synthaseaspergillus nidulansoxygenexposedproduct