title: Variation in expression of class 1 and class 5 outer membrane proteins during nasopharyngeal carriage of Neisseria meningitidis.
abstract: Accidental nasopharyngeal colonization of a laboratory worker by a human disease isolate of Neisseria meningitidis allowed us to examine the variation in expression of outer membrane components and the host humoral response over time. There were quantitative differences in class 1 outer membrane protein expression in nasopharyngeal isolates obtained at different times. Isolates also showed phase variation of all four class 5 outer membrane proteins produced by the colonizing strain. After colonization, we detected new host serum immunoglobulin G antibodies directed against class 1, class 5, and H.8 outer membrane proteins.
authors.affiliation: Department of Microbiology and Immunology, University of North Carolina School of Medicine, Chapel Hill 27599.
authors.forename: J P
authors.initials: JP
authors.lastname: Woods
authors.forename: J G
authors.initials: JG
authors.lastname: Cannon
mesh_terms: D001425:Bacterial Outer Membrane Proteins / Q000032:analysis*; D002353:Carrier State / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D008585:Meningitis, Meningococcal / Q000378:metabolism; D009305:Nasopharynx / Q000382:microbiology*; D009345:Neisseria meningitidis / Q000032:analysis* / Q000276:immunology
chemical_list: D001425:Bacterial Outer Membrane Proteins; D007074:Immunoglobulin G