Robuta

https://pubmed.ncbi.nlm.nih.gov/3558321/ Copurification and characterization of deacetoxycephalosporin C synthetase/hydroxylase from... Deacetoxycephalosporin C synthetase (expandase), which catalyzes ring expansion of penicillin N to deacetoxycephalosporin C (DAOC), has been stabilized in... copurificationcharacterizationsynthetase