Expression of the Escherichia coli dam gene
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Expression of the Escherichia coli dam gene. / Løbner-Olesen, A; Boye, E; Marinus, M G.
I: Molecular Microbiology, Bind 6, Nr. 13, 07.1992, s. 1841-51.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Expression of the Escherichia coli dam gene
AU - Løbner-Olesen, A
AU - Boye, E
AU - Marinus, M G
PY - 1992/7
Y1 - 1992/7
N2 - The Escherichia coli dam gene and upstream sequences were cloned from the Kohara phage 4D4. Five promoters were found to contribute to dam gene transcription. P1 and P2 (the major promoter) were situated approximately 3.5 kb upstream of the structural gene, P3 was within the aroB gene, P4 was within the urf74.3 gene, and P5 was in the urf74.3-dam intergenic region. The nucleotide sequence of 2280 bp of DNA containing P1 and P2 was determined and shown to have the potential to encode a protein of approximately 16 kDa between P1, P2 and the aroB gene. This 16 kDa open reading frame has been identified as aroK, the gene for shikimic acid kinase I. Thus the dam gene is part of an operon containing aroK, aroB, urf74.3, and dam. The transcriptional start points of the promoters were determined. A comparison of their nucleotide sequences suggested that P1-P4 were all recognized by the sigma 70 subunit of the RNA polymerase.
AB - The Escherichia coli dam gene and upstream sequences were cloned from the Kohara phage 4D4. Five promoters were found to contribute to dam gene transcription. P1 and P2 (the major promoter) were situated approximately 3.5 kb upstream of the structural gene, P3 was within the aroB gene, P4 was within the urf74.3 gene, and P5 was in the urf74.3-dam intergenic region. The nucleotide sequence of 2280 bp of DNA containing P1 and P2 was determined and shown to have the potential to encode a protein of approximately 16 kDa between P1, P2 and the aroB gene. This 16 kDa open reading frame has been identified as aroK, the gene for shikimic acid kinase I. Thus the dam gene is part of an operon containing aroK, aroB, urf74.3, and dam. The transcriptional start points of the promoters were determined. A comparison of their nucleotide sequences suggested that P1-P4 were all recognized by the sigma 70 subunit of the RNA polymerase.
KW - Amino Acid Sequence
KW - Base Sequence
KW - Cloning, Molecular
KW - Escherichia coli/enzymology
KW - Escherichia coli Proteins
KW - Flow Cytometry
KW - Gene Expression Regulation, Bacterial
KW - Genes, Bacterial
KW - Methyltransferases/genetics
KW - Molecular Sequence Data
KW - Mutation
KW - Operon
KW - Promoter Regions, Genetic
KW - Site-Specific DNA-Methyltransferase (Adenine-Specific)
KW - Transcription Factors/genetics
M3 - Journal article
C2 - 1630320
VL - 6
SP - 1841
EP - 1851
JO - Molecular Microbiology
JF - Molecular Microbiology
SN - 0950-382X
IS - 13
ER -
ID: 200972937