Expression and secretion of mature human beta interleukin-1 in B

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...

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435 698, 43525231, 4353201, 536 2352, 536 241, C07K 14545, C12N 121, C12N 1525, C12N 1575

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054379881

ABSTRACT:
A new plasmid vector is described which can replicate in B.subtilis and which can express and secrete, in the culture medium, human beta interleukin-1 (beta IL-1) without amino acid sequences extraneous to the natural molecule, a strain of B.subtilis transformed by the vector and a method for the expression and secretion of mature human beta interleukin-1. The human beta interleukin-1 thus obtained shows a specific acitvity of 1.times.10.sup.9 U/mg of protein and is particularly suitable as a stimulant for the immune system, as an adjuvant in vaccines for the activation of the repair mechanism in cases of tissue damage, and for the treatment of auto-immune diseases in man.

REFERENCES:
patent: 5015574 (1991-05-01), Furutani et al.
Journal of Biotechnology, Processing of the Prepropeptide Portions of the Bacillus amyloliquefaciens Neutral Protease Fused to Bacillus subtilis .alpha.-amylase and Human Growth Hormone During Secretion in Bacillus subtilis, A. Nakayama, H. Shimada, Y. Furutani and M. Honjo, Sep. 3, 1991, pp. 55-69.
Motley, S. T. et al. "Expression & Secretion of Human IL-1 in B. subtilis," Genetics & Biotechnology of Bacilli, vol. 2, pp. 371-375 (1988).

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