PMID:7813890

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Citation

Beck, R, Crooke, H, Jarsch, M, Cole, J and Burtscher, H (1994) Mutation in dipZ leads to reduced production of active human placental alkaline phosphatase in Escherichia coli. FEMS Microbiol. Lett. 124:209-14

Abstract

We have tested the expression of alkaline phosphatases in a mutant strain of Escherichia coli deficient in dipZ, a gene coding for a protein involved in cytochrome c biogenesis, and the isogenic wild-type strain. The yield of soluble and active human placental alkaline phosphatase was significantly reduced in the mutant but could be fully recovered by expression of dipZ subcloned in a vector with low copy number. Overexpression of E. coli alkaline phosphatase was unaffected in the mutant with or without dipZ co-expression.

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Keywords

Alkaline Phosphatase/biosynthesis; Alkaline Phosphatase/genetics; Escherichia coli/genetics; Female; Humans; Mutation; Oxidoreductases/biosynthesis; Placenta/enzymology; Plasmids; Pregnancy; Recombinant Proteins/biosynthesis

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