RRC ID 30019
Author Loewen PC, Triggs BL.
Title Genetic mapping of katF, a locus that with katE affects the synthesis of a second catalase species in Escherichia coli.
Journal J Bacteriol
Abstract A class of catalase-deficient mutants that was unlinked to katE was localized between mutS and cys at 59.0 min on the Escherichia coli genome. This locus was named katF. Transposon Tn10 insertions were isolated that mapped in both katE and katF loci. The catalase species present in katE+ and katF+ recombinants was found to be different from the main catalase activities, HPI and HPII, in several respects. It did not have an associated peroxidase activity; it was electrophoretically slower on native polyacrylamide gels; it eluted from DEAE-Sephadex A50 at a higher salt concentration; its Km for H2O2 was 30.9 mM as compared with 3.7 mM for HPI and HPII; its synthesis was not induced by ascorbate; and it did not cross react with HPI-HPII antisera. This new catalase was labeled HPIII.
Volume 160(2)
Pages 668-75
Published 1984-11-1
DOI 10.1128/jb.160.2.668-675.1984
PMID 6094482
PMC PMC214787
MeSH Ascorbic Acid / pharmacology Catalase / genetics* Catalase / metabolism Chromosome Mapping DNA Restriction Enzymes DNA Transposable Elements Escherichia coli / enzymology Escherichia coli / genetics* Genes* Genes, Bacterial* Genetic Markers* Genotype Immunodiffusion Kinetics Species Specificity
IF 3.006
Times Cited 169
WOS Category MICROBIOLOGY
Resource
Prokaryotes E. coli ME8300 ME8301 ME8302