Results 151 to 160 of about 5,820 (182)

Aerobactin production by enterotoxigenic Escherichia coli of porcine intestine

Veterinary Microbiology, 1995
Of 135 strains of Escherichia coli from the intestines of healthy and diseased piglets screened, 16 (12%) were positive in a bioassay for aerobactin production. Of these, 15 also carried genetic determinants for heat stable or heat labile enterotoxins.
Peter H Williams
exaly   +3 more sources

IS1-mediated mobility of the aerobactin system of pColV-K30 in Escherichia coli

Molecular Genetics and Genomics, 1988
Genes determining the high affinity iron transport system mediated by the siderophore aerobactin are flanked in the enterobacterial plasmid pColV-K30 by inverted repeats of IS1 sequences, suggesting that the aerobactin genes are part of a transposon.
Víctor de Lorenzo, J B Neilands
exaly   +3 more sources

Aerobactin: A Multifaceted Siderophore

Indian Journal of Microbiology
Subho Ghosh
exaly   +2 more sources

Effects of some substrate analogs on aerobactin synthetase from Aerobacter aerogenes 62-1 [PDF]

FEBS Letters, 1986
Tricarballylic acid was the only analog of citric acid that appeared to be a substrate for aerobactin synthetase. The others, succinic acid, glutaric acid and 3-methyl-3-hydroxyglutaric acid, though potent inhibitors of aerobactin synthesis, were neither
Vasu Appanna
exaly   +2 more sources

Aerobactin production as a virulence factor: A reevaluation

European Journal of Clinical Microbiology & Infectious Diseases, 1988
Iron starvation is one of the major barriers that virulent bacteria must overcome in order to proliferate in the host. Virtually all microorganisms possess high affinity iron (III) transport systems mediated by low molecular weight iron specific chelators called siderophores, the synthesis of which is activated under iron-limiting conditions ...
de Lorenzo V, Martinez JL
openaire   +3 more sources

Aerobactin-mediated utilization of transferrin iron

Biochemistry, 1982
Aerobactin and enterobactin, hydroxamate- and catechol-type siderophores, respectively, were found capable of removing iron (III) from transferrin in buffered solution. Although under these conditions aerobactin displaced the iron much more slowly than did enterobactin, the rate for the former could be accelerated by addition of pyrophosphate as ...
K, Konopka, A, Bindereif, J B, Neilands
openaire   +2 more sources

Genetic and biochemical characterization of the aerobactin synthesis operon on pColV

Molecular and General Genetics MGG, 1984
Certain ColV plasmids of Escherichia coli contain genes that specify functions for the acquisition of iron(III) via aerobactin. The locus for aerobactin synthesis of pColV-K311 was cloned into pBR322. Mutagenesis with the transposon Tn1000, and the generation of deletions with restriction enzymes resulted in multicopy plasmids which complemented pColV ...
R, Gross, F, Engelbrecht, V, Braun
openaire   +2 more sources

Aerobactin production by a planktonic marine Vibrio sp

Limnology and Oceanography, 1993
Production of siderophores by marine bacteria could potentially contribute to metal complexation by organic compounds in seawater. Direct isolation of planktonic marine bacteria on siderophore indicator plates showed that siderophore producers are present.
Margo G. Haygood, Pamela D. Holt, Alison Butler   +2 more
openaire   +1 more source

Investigation of lysine: N-hydroxylation in the biosynthesis of the siderophore aerobactin

Bioorganic Chemistry, 1989
Abstract N -Ethylmaleimide was found to inhibit both pyruvate oxidation and lysine: N 6 -hydroxylation catalyzed by an enzyme system derived from Aerobacter aerogenes 62-1. Studies of pyruvate utilization in the presence and absence of lysine indicated a 1:1 stoichiometric relationship between consumption of pyruvate and production of N 6 ...
C.J. Goh, E.W. Szczepan, G. Wright, N. Menhart, J.F. Honek, T. Viswanatha   +5 more
openaire   +1 more source

Deletion mapping of the aerobactin gene complex of plasmid CoIV

Inorganica Chimica Acta, 1983
With the possible exception of certain strains of lactic acid bacteria, iron is known to be an essential element for all species of microbes and for all higher organisms. Within the cell, iron protein catalysts participate in some of the reactions most fundamental to life, including aerobic and anaerobic energy metabolism, nitrogen fixation ...
Albrecht Bindereif, Peter E. Thorsness, J.B. Neilands   +2 more
openaire   +1 more source