Purification of insulin-like growth factor

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai

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530407, 530303, 530399, A61K 3808, C12N 1518, C07K 1400

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active

054460247

ABSTRACT:
A process for purifying IGF-I from variants of IGF-I is provided. In this process a mixture containing IGF-I and its variants is loaded onto a reversed-phase liquid chromatography column and the IGF-I is eluted from the column with a buffer at a pH of about 6-8. The buffer contains an alcoholic or polar aprotic solvent at a concentration of about 20-30% (v/v). This process can be preceded by a hydrophobic-interaction chromatography step.

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