FIELD: chemistry.
SUBSTANCE: solution contains alpha1 proteinase (recA1PI) inhibitor, obtained from the cell culture, comprising incubation of a solution containing recA1PI, with a reducing agent, which is cysteine or DTT in a concentration of1 to 100 mM at a temperature of approx. 2°C to approx. 60°C, and recA1PI separation from the colouring agent.
EFFECT: reduced amount of the colouring agent in the solution.
6 cl, 19 dwg, 2 tbl, 13 ex
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