Orientation and sequence analysis of right ends and target sites of bacteriophage Mu and D108 insertions in the plasmid pSC101

George B. Szatmari, Jeffrey Kahn, Michael S. DuBow

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have isolated four independent insertions of the entire 37-kb D10Scts10 genome in the low-copy-number plasmid pSC101 in vivo. They were all formed by replicative transposition during the D108 lytic cycle. The orientation of these four insertions was found to be the same, with the left ends facing towards pS101 replication, and the right end facing in the direction of all pS101 transcription, as was previously found for a Mucts62 insertion in pS101, pMC321. The exact sites of insertion of two of the D108 prophages, as well as the Mu prophage, have been determined by sequence analysis. All three insertions caused a 5-bp duplication of pS101 sequences at the target site, as has been found for insertions formed by conservative integration upon lysogeny. Moreover, we have determined the nucleotide sequence of the first 75 bp of the right end of D108 and, though this end is interchangeable with the right end of Mu as a substrate for either phage's transposition functions, there are a number of nucleotide differences between them.

Original languageEnglish (US)
Pages (from-to)315-319
Number of pages5
JournalGene
Volume41
Issue number2-3
DOIs
StatePublished - 1986

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Bacteriophage mu
Prophages
Sequence Analysis
Plasmids
Lysogeny
Bacteriophages
Nucleotides
Genome

Keywords

  • 5 base pair duplications of target
  • cointegrate transposition
  • In vivo DNA cloning
  • recombinant DNA
  • restriction mapping
  • right end sequence

ASJC Scopus subject areas

  • Genetics

Cite this

Orientation and sequence analysis of right ends and target sites of bacteriophage Mu and D108 insertions in the plasmid pSC101. / Szatmari, George B.; Kahn, Jeffrey; DuBow, Michael S.

In: Gene, Vol. 41, No. 2-3, 1986, p. 315-319.

Research output: Contribution to journalArticle

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abstract = "We have isolated four independent insertions of the entire 37-kb D10Scts10 genome in the low-copy-number plasmid pSC101 in vivo. They were all formed by replicative transposition during the D108 lytic cycle. The orientation of these four insertions was found to be the same, with the left ends facing towards pS101 replication, and the right end facing in the direction of all pS101 transcription, as was previously found for a Mucts62 insertion in pS101, pMC321. The exact sites of insertion of two of the D108 prophages, as well as the Mu prophage, have been determined by sequence analysis. All three insertions caused a 5-bp duplication of pS101 sequences at the target site, as has been found for insertions formed by conservative integration upon lysogeny. Moreover, we have determined the nucleotide sequence of the first 75 bp of the right end of D108 and, though this end is interchangeable with the right end of Mu as a substrate for either phage's transposition functions, there are a number of nucleotide differences between them.",
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N2 - We have isolated four independent insertions of the entire 37-kb D10Scts10 genome in the low-copy-number plasmid pSC101 in vivo. They were all formed by replicative transposition during the D108 lytic cycle. The orientation of these four insertions was found to be the same, with the left ends facing towards pS101 replication, and the right end facing in the direction of all pS101 transcription, as was previously found for a Mucts62 insertion in pS101, pMC321. The exact sites of insertion of two of the D108 prophages, as well as the Mu prophage, have been determined by sequence analysis. All three insertions caused a 5-bp duplication of pS101 sequences at the target site, as has been found for insertions formed by conservative integration upon lysogeny. Moreover, we have determined the nucleotide sequence of the first 75 bp of the right end of D108 and, though this end is interchangeable with the right end of Mu as a substrate for either phage's transposition functions, there are a number of nucleotide differences between them.

AB - We have isolated four independent insertions of the entire 37-kb D10Scts10 genome in the low-copy-number plasmid pSC101 in vivo. They were all formed by replicative transposition during the D108 lytic cycle. The orientation of these four insertions was found to be the same, with the left ends facing towards pS101 replication, and the right end facing in the direction of all pS101 transcription, as was previously found for a Mucts62 insertion in pS101, pMC321. The exact sites of insertion of two of the D108 prophages, as well as the Mu prophage, have been determined by sequence analysis. All three insertions caused a 5-bp duplication of pS101 sequences at the target site, as has been found for insertions formed by conservative integration upon lysogeny. Moreover, we have determined the nucleotide sequence of the first 75 bp of the right end of D108 and, though this end is interchangeable with the right end of Mu as a substrate for either phage's transposition functions, there are a number of nucleotide differences between them.

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