Add time:07/11/2019         Source:sciencedirect.com

The screening of potential affinity ligands and the development of a two-stage affinity purification of an S-adenosylmethionine-dependent 3-amino-3-carboxypropyl transferase involved in the biosynthesis of the β-lactam antibiotic nocardicin A is described from a cell-free extract of Nocardia uniformis subsp. tsuyamanesis. This protein is particularly sensitive to ion exchange and salt effects necessitating a pair of neutral ligands to be used in the final purification.

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