» Articles » PMID: 2193915

Translocation and Compartmentalization of Escherichia Coli Hemolysin (HlyA)

Overview
Journal J Bacteriol
Specialty Microbiology
Date 1990 Jul 1
PMID 2193915
Citations 12
Authors
Affiliations
Soon will be listed here.
Abstract

Hemolysin plasmids were constructed with mutations in hlyB, hlyD, or both transport genes. The localization of hemolysin activity and HlyA protein in these mutants was analyzed by biochemical and immunological methods. It was found that mutants defective in hlyB accumulated internal hemolysin, part of which was associated with the inner membrane and was degraded in the late logarithmic growth phase. In an HlyB+ HlyD- mutant, hemolysin was predominantly localized in the membrane compartment. Labeling of these Escherichia coli cells with anti-HlyA antibody indicated that part of HlyA, presumably the C-terminal end but not the pore-forming domains, was already transported to the cellular surface. This finding suggests that HlyB is able to recognize the C-terminal signal of the HlyA protein and to initiate its translocation across the membranes.

Citing Articles

Hemolytically active (acylated) alpha-hemolysin elicits interleukin-1beta (IL-1beta) but augments the lethality of Escherichia coli by an IL-1- and tumor necrosis factor-independent mechanism.

Gleason T, Houlgrave C, May A, Crabtree T, Sawyer R, Denham W Infect Immun. 1998; 66(9):4215-21.

PMID: 9712770 PMC: 108508. DOI: 10.1128/IAI.66.9.4215-4221.1998.


Superior efficacy of secreted over somatic antigen display in recombinant Salmonella vaccine induced protection against listeriosis.

Hess J, Gentschev I, Miko D, Welzel M, Ladel C, Goebel W Proc Natl Acad Sci U S A. 1996; 93(4):1458-63.

PMID: 8643654 PMC: 1079202. DOI: 10.1073/pnas.93.4.1458.


Genetic analysis of the colicin V secretion pathway.

Zhang L, Fath M, Mahanty H, Tai P, Kolter R Genetics. 1995; 141(1):25-32.

PMID: 8536973 PMC: 1206723. DOI: 10.1093/genetics/141.1.25.


ABC transporters: bacterial exporters.

Fath M, Kolter R Microbiol Rev. 1993; 57(4):995-1017.

PMID: 8302219 PMC: 372944. DOI: 10.1128/mr.57.4.995-1017.1993.


Identification and characterization of two functional domains of the hemolysin translocator protein HlyD.

Schulein R, Gentschev I, Schlor S, Gross R, Goebel W Mol Gen Genet. 1994; 245(2):203-11.

PMID: 7816028 DOI: 10.1007/BF00283268.


References
1.
Osborn M, Munson R . Separation of the inner (cytoplasmic) and outer membranes of Gram-negative bacteria. Methods Enzymol. 1974; 31:642-53. DOI: 10.1016/0076-6879(74)31070-1. View

2.
McGrath J, Varshavsky A . The yeast STE6 gene encodes a homologue of the mammalian multidrug resistance P-glycoprotein. Nature. 1989; 340(6232):400-4. DOI: 10.1038/340400a0. View

3.
Koshland D, Botstein D . Secretion of beta-lactamase requires the carboxy end of the protein. Cell. 1980; 20(3):749-60. DOI: 10.1016/0092-8674(80)90321-9. View

4.
Pinto da Silva P, Torrisi M, Kachar B . Freeze-fracture cytochemistry: localization of wheat-germ agglutinin and concanavalin A binding sites on freeze-fractured pancreatic cells. J Cell Biol. 1981; 91(2 Pt 1):361-72. PMC: 2111992. DOI: 10.1083/jcb.91.2.361. View

5.
Wagner W, Vogel M, Goebel W . Transport of hemolysin across the outer membrane of Escherichia coli requires two functions. J Bacteriol. 1983; 154(1):200-10. PMC: 217448. DOI: 10.1128/jb.154.1.200-210.1983. View