Cell envelope of Bordetella pertussis: immunological and biochemical analyses and characterization of a major outer membrane porin protein
Thesis/Dissertation
·
OSTI ID:6591932
Surface molecules of Bordetella pertussis which may be important in metabolism, pathogenesis, and immunity to whooping cough were examined using cell fractionation and /sup 125/I cell surface labeling. Antigenic envelope proteins were examined by immunofluorescence microscopy and Western blotting procedures using monoclonal antibodies and convalescent sera. A surface protein with a high M/sub r/, missing in a mutant lacking the filamentous hemagglutinin, was identified in virulent Bordetella pertussis but was absent in virulent B. pertussis strains. At least three envelope proteins were found only in virulent B. pertussis strains and were absent or diminished in avirulent and most phenotypically modulated strains. Transposon-induced mutants unable to produce hemolysin, dermonecrotic toxin, pertussis toxin, and filamentous hemagglutinin also lacked these three envelope proteins, confirming that virulence-associated envelope proteins were genetically regulated with other virulence-associated traits. Two dimensional gel electrophoresis revealed at least five heat modifiable proteins which migrated as higher or lower M/sub r/ moieties if solubilized at 25/sup 0/C instead of 100/sup 0/C.
- Research Organization:
- Missouri Univ., Columbia (USA)
- OSTI ID:
- 6591932
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550201* -- Biochemistry-- Tracer Techniques
550901 -- Pathology-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ANTIBODIES
BACTERIA
BACTERIAL DISEASES
BETA DECAY RADIOISOTOPES
CELL CONSTITUENTS
CELL WALL
CHEMICAL COMPOSITION
DAYS LIVING RADIOISOTOPES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
ELECTROPHORESIS
GENE REGULATION
INFECTIOUS DISEASES
INTERMEDIATE MASS NUCLEI
IODINE 125
IODINE ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
MICROORGANISMS
MONOCLONAL ANTIBODIES
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PATHOGENESIS
PROTEINS
RADIOISOTOPES
TRACER TECHNIQUES
550901 -- Pathology-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ANTIBODIES
BACTERIA
BACTERIAL DISEASES
BETA DECAY RADIOISOTOPES
CELL CONSTITUENTS
CELL WALL
CHEMICAL COMPOSITION
DAYS LIVING RADIOISOTOPES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
ELECTROPHORESIS
GENE REGULATION
INFECTIOUS DISEASES
INTERMEDIATE MASS NUCLEI
IODINE 125
IODINE ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
MICROORGANISMS
MONOCLONAL ANTIBODIES
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PATHOGENESIS
PROTEINS
RADIOISOTOPES
TRACER TECHNIQUES