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Nucleotide sequence of the E. coli gene coding for dihydrofolate reductase

Open access
Smith, Douglas R., Calvo, Joseph M.·1980·Nucleic Acids Research

Abstract

Plasmid pLC1437a contains DNA from Escherichia coli K12 including fol, the structural gene for dihydrofolate reductase. The fol gene was mapped on this plasmid relative to several restriction endonuclease cleavage sites. fol was also cloned from strain RSO and the nucleotide sequence for the entire fol gene and its flanking regions from this strain was determined. The amino acid sequence predicted from the nucleotide sequence differs in only a few respects from the reported amino acid sequence of dihydrofolate reductase from E. coli B. The major RNA transcripts initiated at the fol promotor in vivo are approximately 550 and 590 nucleotides long. In addition to these, several longer transcripts (up to 1400 nucleotides) are present in lesser amounts. A new procedure is described for 3' end labeling of DNA fragments having blunt ends using E. coli exonuclease III and avian myeloblastoma virus reverse transcriptase.

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Metadata

Authors
Smith, D. R., & Calvo, J. M.
Venue
Nucleic Acids Research
Published
1980
Volume
8
Issue
10
Pages
2255-2274
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2065930024
Cited by
367
References
0
FWCI
39.04
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Nucleotide sequence of the E. coli gene coding for dihydrofolate reductase. https://app.cochat.ai/papers/10.1093/nar/8.10.2255
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Smith, D. R., & Calvo, J. M. (1980). Nucleotide sequence of the E. coli gene coding for dihydrofolate reductase. Nucleic Acids Research. https://doi.org/10.1093/nar/8.10.2255

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.