Method and apparatus for the production of TGF-.beta.

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Hormones – e.g. – prolactin – thymosin – growth factors – etc.

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530412, 530416, C07K 322

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active

050434314

ABSTRACT:
Transforming growth factor .beta. (TGF-.beta.) is produced in relatively large quantities and at a relatively high purity by fermentation in a perfusion microcarrier reactor. Conditioned media from the reactor is first treated to provide the active form of TGF-.beta. and subsequently purified by cation exchange chromatography followed by hydrophobic interaction chromatography. Optionally, nucleic acids complexed with the TGF-.beta. may be removed while the protein is bound to the cation exchange resin.

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