C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
195/1.2, 195/1.2
C12N 15/81 (2006.01) C12N 1/19 (2006.01) C12N 15/11 (2006.01) C12N 15/85 (2006.01)
Patent
CA 1281672
43 ABSTRACT Vectors A eukaryotic expression vector includes a controllable repressor operator sequence within the expression control sequence of the vector. The controllable repressor operator sequence represses expression of a heterologous structural gene located downstream of the expression control sequence in the presence of a gene product or a combination of gene products of a yeast mating type locus. This allows control of the expression level of the heterologous structural gene. Controllable repressor operator sequences responsive to the al/.alpha.2 and .alpha.2 gene products of the MATa and MAT yeast mating type locus alleles are described, both derived from material and synthesised chemically.
487239
Miller Allan M.
Nasmyth Kim A.
Celltech Therapeutics Limited
Kirby Eades Gale Baker
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