Linked Life Data

Mol. Gen. Genet.

The sequence of the methotrexate-resistant dihydrofolate reductase (DHFR) gene borne by the plasmid R-388 was determined. The gene was subcloned and mapped by an in vitro mutagenesis method involving insertion of synthetic oligonucleotide decamers encoding the BamHI recognition site. Sites of insertion that destroyed the methotrexate resistance fell in two regions separated by 300 bp within a 1.2 kb fragment. One of these regions encodes a 78 amino acid polypeptide homologous to another drug-resistant DHFR. The second region essential for DHFR expression appears to be the promoter of the DHFR gene.

Source:http://purl.uniprot.org/citations/7022127

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http://purl.uniprot.org/cit...rdfs:commentThe sequence of the methotrexate-resistant dihydrofolate reductase (DHFR) gene borne by the plasmid R-388 was determined. The gene was subcloned and mapped by an in vitro mutagenesis method involving insertion of synthetic oligonucleotide decamers encoding the BamHI recognition site. Sites of insertion that destroyed the methotrexate resistance fell in two regions separated by 300 bp within a 1.2 kb fragment. One of these regions encodes a 78 amino acid polypeptide homologous to another drug-resistant DHFR. The second region essential for DHFR expression appears to be the promoter of the DHFR gene.lld:uniprot
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http://purl.uniprot.org/cit...uniprot:authorHeffron F.lld:uniprot
http://purl.uniprot.org/cit...uniprot:authorMcCarthy B.J.lld:uniprot
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http://purl.uniprot.org/cit...uniprot:titleDNA sequence of a plasmid-encoded dihydrofolate reductase.lld:uniprot
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