β-Glucuronidase from Escherichia coli as a gene-fusion marker

R. A. Jefferson, S. M. Burgess, D. Hirsh

Research output: Contribution to journalArticle

760 Citations (Scopus)

Abstract

We have developed a gene-fusion system based on the Escherichia coli β-glucuronidase gene (uidA). The uidA gene has been cloned from E. coli K-12 and its entire nucleotide sequence has been determined. β-Glucuronidase has been purified to homogeneity and characterized. The enzyme has a subunit molecular weight of 68,200, is very stable, and is easily and sensitively assayed using commercially available substrates. We have constructed gene fusions of the E. coli lacZ promoter and coding region with the coding region of the uidA gene that show β-glucuronidase activity under lac control. Plasmid vectors have been constructed to facilitate the transfer of the β-glucuronidase coding region to heterologous control regions, using many different restriction endonuclease cleavage sites. There are several biological systems in which uidA-encoded β-glucuronidase may be an attractive alternative or complement to previously described gene-fusion markers such as β-galactosidase or chloramphenicol acetyltransferase.

Original languageEnglish (US)
Pages (from-to)8447-8451
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume83
Issue number22
StatePublished - 1986
Externally publishedYes

Fingerprint

Gene Fusion
Glucuronidase
Escherichia coli
Galactosidases
Genes
Chloramphenicol O-Acetyltransferase
DNA Restriction Enzymes
Genetic Promoter Regions
Plasmids
Molecular Weight
Enzymes

ASJC Scopus subject areas

  • General
  • Genetics

Cite this

β-Glucuronidase from Escherichia coli as a gene-fusion marker. / Jefferson, R. A.; Burgess, S. M.; Hirsh, D.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 83, No. 22, 1986, p. 8447-8451.

Research output: Contribution to journalArticle

Jefferson, R. A. ; Burgess, S. M. ; Hirsh, D. / β-Glucuronidase from Escherichia coli as a gene-fusion marker. In: Proceedings of the National Academy of Sciences of the United States of America. 1986 ; Vol. 83, No. 22. pp. 8447-8451.
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