PERFECTED VECTOR; VECTOR PMG100; VECTOR PND5; PLASMIDIOUS FOR THE PRODUCTION OF A POLYPEEPTIDE; PLASMIDIOUS AND PROCESS FOR THE PRODUCTION OF BOVINE AND HUMAN GROWTH HORMONE; HOST-VECTOR SYSTEM; PROCESS FOR THE PRODUCTION OF A POLYPHERE PRODUCT; ; PHARMACEUTICAL COMPOSITION; PROCESS OF STIMULATING THE PRODUCTION OF MILK OR MEAT IN CATTLE; PROCESS OF TREATING HUMAN GROWTH HORMONE DEFICIENCY; ANALOG OF BGH;

摘要

Disclosed is an improved plasmid which upon introduction into a suitable Escherichia coli host cell containing the thermolabile repressor CI, renders the host cell capable, upon increasing the temperature of the host cell to a temerature at which the repressor is destroyed, of effecting expression of a gene encoding superoxide dismutase inserted into the vector, and production of the superoxide dismutase encoded by the gene.