ArticleCurrent genetics2008
Expression of the Acremonium chrysogenum cefT gene in Penicillum chrysogenum indicates that it encodes an hydrophilic beta-lactam transporter.
Article in Current genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 22 citations in OpenAlex.
- Cephalosporin C biosynthesis and fermentation in Acremonium chrysogenum.Applied microbiology and biotechnology · 2022Review
- Review
- The ABCT31 Transporter Regulates the Export System of Phenylacetic Acid as a Side-Chain Precursor of Penicillin G inFrontiers in microbiology · 2022Article
- Genetic Modification ofMicroorganisms · 2019Article
- Regulation and compartmentalization of β-lactam biosynthesis.Microbial biotechnology · 2010Review
- Pathway transfer in fungi.BioengineeredArticle
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Acremonium chryrsogenum cefT gene encoding a membrane protein of the major facilitator superfamily implicated in the cephalosporin biosynthesis in A. chrysogenum was introduced into Penicillium chrysogenum Wisconsin 54-1255 (a benzylpenicillin producer), P. chrysogenum npe6 pyrG(-) (a derivative of Wisconsin 54-1255 lacking a functional penDE gene) and P. chrysogenum TA98 (a deacetylcephalosporin producer containing the cefD1, cefD2, cefEF and cefG genes from A. chrysogenum). RT-PCR analysis revealed that the cefT gene was expressed in P. chrysogenum strains. HPLC analysis of the culture broths of the TA98 transformants showed an increase in the secretion of deacetylcephalosporin C and hydrophilic penicillins (isopenicillin N and penicillin N). P. chrysogenum Wisconsin 54-1255 strain transformed with cefT showed increased secretion of the isopenicillin N intermediate and a drastic decrease in the benzylpenicillin production. Southern and northern blot analysis indicated that the untransformed P. chrysogenum strains contain an endogenous gene similar to cefT that may be involved in the well-known secretion of the isopenicillin N intermediate. In summary, the cefT transporter is a hydrophilic beta-lactam transporter that is involved in the secretion of hydrophilic beta-lactams containing alpha-aminoadipic acid side chain (isopenicillin N, penicillin N and deacetylcephalosporin C).
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