Mutational analysis of the Escherichia coli glpFK region with Tn5 mutagenesis and the polymerase chain reaction.
Transposon Tn5 mutagenesis of the Escherichia coli chromosome was used to isolate 21 independent insertion mutations conferring an altered colony color phenotype on MacConkey-glycerol plates. The polymerase chain reaction was used to map 16 of these Tn5 insertions within the glpFK region at 88 min. The most polar Tn5 insertion was shown by nucleotide sequencing to be in the proposed glpF open reading frame. The data suggest that the glpF and glpK genes are in an operon with a bent DNA segment (BENT-6) involved in transcriptional regulation of this operon.
Lupski
J R
JR
Institute for Molecular Genetics, Baylor College of Medicine, Houston, Texas 77030.
Zhang
Y H
YH
Rieger
M
M
Minter
M
M
Hsu
B
B
Ooi
B G
BG
Koeuth
T
T
McCabe
E R
ER
D020346:Aquaporins; D001425:Bacterial Outer Membrane Proteins / Q000235:genetics* / Q000378:metabolism; D002876:Chromosomes, Bacterial; D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000235:genetics / Q000302:isolation & purification; D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism; D029968:Escherichia coli Proteins; D005990:Glycerol / Q000378:metabolism*; D007700:Kinetics; D008565:Membrane Proteins / Q000235:genetics; D009154:Mutation; D009876:Operon; D010641:Phenotype; D016133:Polymerase Chain Reaction / Q000379:methods; D015183:Restriction Mapping
D020346:Aquaporins; D001425:Bacterial Outer Membrane Proteins; D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; C078043:GlpF protein, E coli; D005990:Glycerol