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Lactose genes fused to exogenous promoters in one step using a Mu-lac bacteriophage: in vivo probe for transcriptional control sequences.

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Casadaban, M J, Cohen, S N·1979·Proceedings of the National Academy of Sciences

Abstract

The lactose structural genes, without the lactose promoter, have been incorporated into the bacteriophage Mu genome to form a Mu-lac specialized transducing phage. This phage also carries a gene encoding resistance to ampicillin (Ap)[Mu(Ap, lac)]. After infection and upon establishment of lysogeny, the Mu(Ap, lac) genome can integrate into apparently random sites in the Escherichia coli chromosome. When integration occurs within a gene in the orientation of its transcription, the lactose structural genes are so situated that they become expressed solely from the promoter of that gene. Thus, expression of the lactose genes of Mu(Ap, lac) can be used as an assay for transcription of that gene and for functional and mutational studies of gene regulation.

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Metadata

Authors
Casadaban, M. J., & Cohen, S. N.
Venue
Proceedings of the National Academy of Sciences
Published
1979-09
Volume
76
Issue
9
Pages
4530-4533
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2154936481
Cited by
924
References
0
FWCI
20.74
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Lactose genes fused to exogenous promoters in one step using a Mu-lac bacteriophage: in vivo probe for transcriptional control sequences. https://app.cochat.ai/papers/10.1073/pnas.76.9.4530
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Casadaban, M. J., & Cohen, S. N. (1979). Lactose genes fused to exogenous promoters in one step using a Mu-lac bacteriophage: in vivo probe for transcriptional control sequences. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.76.9.4530

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

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