Recombinant production of biologically active peptides and prote

Details Recombinant production of biologically active peptides and prote Recombinant production of biologically active peptides and prote

1994-07-29

1996-12-31

Patterson, Jr., Charles L.

Chemistry: molecular biology and microbiology

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

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

435 691, 4351723, C12P 2100

Patent

active

055893643

ABSTRACT:
The present invention relates to the recombinant production of amphiphilic peptides with biologically and therapeutically significant activities. In one embodiment, this invention relates to recombinantly producing an amphiphilic peptide by providing a protease-deficient microbial host transformed with an expression vector containing DNA that encodes the amphiphilic peptide under the control of a regulatory sequence operable in the microbial host and expressing the amphiphilic peptide in the transformed microbial host. In another embodiment, this invention relates to providing an E. coli protease-deficient K-12 cell transformed with a vector that expresses a cleavable fusion protein comprising at least part of a carbohydrate binding protein and the amphiphilic peptide in the cell, expressing the fusion protein in the cell, and cleaving the fusion protein to obtain the amphiphilic peptide substantially free of carbohydrate binding protein residues. The biologically active amphiphilic peptide so produced can be further treated chemically or enzymatically to obtain a chemically distinct amphiphilic peptide with improved biological and therapeutic properties.

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