The complete gene (cefG) encoding the acetyl-CoA: deacetylcephalosporin C acetyltransferase of Cephalosporium acremonium, its isolation and use

The complete gene (cefG) encoding the acetyl-CoA: deacetylcephalosporin C acetyltransferase of Cephalosporium acremonium, its isolation and use

The gene (cefG) encoding the acetyl-CoA: deacetylcephalosporin C acetyltransferase (DAC-ATF) of Cephalosporium acremonium (syn. Acremonium chrysogenum) C10 has been isolated. It contains two introns and encodes a protein of 444 amino acids with a molecular weight of 49269 that correlates well with t...

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Hauptverfasser: VELASCO ALVAREZ, JAVIER, GUTIERREZ MARTIN, SANTIAGO, FERNANDEZ PERRINO, FRANCISCO JOSE, MARTIN MARTIN, JUAN FRANCISCO, DR
Format: Patent
Sprache:eng ; fre ; ger
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BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Zusammenfassung:The gene (cefG) encoding the acetyl-CoA: deacetylcephalosporin C acetyltransferase (DAC-ATF) of Cephalosporium acremonium (syn. Acremonium chrysogenum) C10 has been isolated. It contains two introns and encodes a protein of 444 amino acids with a molecular weight of 49269 that correlates well with the molecular weight deduced by gel filtration (Mol. weight 52 000 +/- 1 000). The cefG gene is linked to the cefEF gene (encoding the bifunctional deacetoxycephalosporin C synthase/hydroxylase) but it is expressed in the opposite orientation to the cefEF gene. The isolated cefG complements the deficiency of deacetylcephalosporin acetyltransferase e.g. in the non-producer mutant C. acremonium ATCC 20371 and restores cephalosporin biosynthesis in this strain. The cefG is therefore useful to improve cephalosporin C production.