Distribution of protein D, an immunoglobulin D-binding protein, in Haemophilus strains
نویسندگان
چکیده
منابع مشابه
Protein D, the immunoglobulin D-binding protein of Haemophilus influenzae, is a lipoprotein.
Protein D is an immunoglobulin D-binding membrane protein exposed on the surface of the gram-negative bacterium Haemophilus influenzae. Results reported here indicate that protein D is a lipoprotein. The protein is apparently synthesized as a precursor with an 18-residue-long signal sequence modified by the covalent attachment of both ester-linked and amide-linked palmitate to the cysteine resi...
متن کاملProtein D of Haemophilus influenzae is not a universal immunoglobulin D-binding protein.
Haemophilus influenzae type b and nontypeable H. influenzae have been reported to bind human immunoglobulin D (IgD). IgD myeloma sera from five patients were tested for the ability of IgD to bind to H. influenzae. Serotype b strains bound human IgD in four of the five sera tested. IgD in the fifth serum bound strongly to type b strain MinnA but poorly to other type b strains. Additionally, IgD ...
متن کاملHaemophilus influenzae resides in tonsils and uses immunoglobulin D binding as an evasion strategy.
Haemophilus influenzae (Hi) causes respiratory tract infections and is also considered to be a commensal, particularly in preschool children. Tonsils from patients (n = 617) undergoing tonsillectomy due to chronic infection or hypertrophy were examined. We found that 51% of tonsils were positive for Hi, and in 95% of cases analyzed in detail (n = 39) Hi resided intracellularly in the core tonsi...
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Surfactant protein D (SP-D) is a collagenous glycoprotein that is secreted into the pulmonary airspaces by alveolar type II and nonciliated bronchiolar cells. SP-D exhibits Ca"+-dependent carbohydrate binding in vitro and is structurally related to the collagenous C-type lectins, including serum conglutinin, serum mannose-binding proteins, and surfactant protein A. Preliminary studies showed ca...
متن کاملImmunonephelometric assay of vitamin D-binding protein.
An automated immunonephelometric assay was developed to measure vitamin D-binding protein (DBP) in serum. The assay is described for the Behring Nephelometer System, which uses rabbit anti-DBP antiserum and purified human DBP. The detection limit is 0.05 g/L (0.86 mumol/L), and the working range is less than or equal to 1.60 g/L (27.59 mumol/L). Intra- and interassay CVs of 2.0% and 2.8-3.8% co...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1991
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.59.4.1231-1238.1991