Process for production of restrictocin

Details Process for production of restrictocin Process for production of restrictocin

1993-03-16

1994-04-26

Wax, Robert A.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Recombinant dna technique included in method of making a...

435849, 935 73, C12P 2102

Patent

active

053066260

ABSTRACT:
Methods for recombinant production in procayotic microorganisms such as E. coli of ribotoxins such as restrictocin, alpha-sarcin and mitogillin are described. Known methods were relatively low yielding and not cost effective for commercial use such as in the pharmaceutical industry where relatively large quantities of toxin with consistent batch to batch quality may be required for immunotoxin production. Use of recombinant methods of production open up the possibility of making ribotoxin analogues. Toxicity of ribotoxins was recognised as a concern in development of a high yielding cost effective production method. Methods for high yielding intracellular accumulation or secretion of ribotoxins are described. Use of protease deficient strains and other methods of minimising breakdown of ribotoxin by protease are preferred. Vectors and host strains for use in the methods are described.

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