Characterization of salivary alpha-amylase binding to Streptococcus sanguis
نویسندگان
چکیده
منابع مشابه
Association of fimbriae with the hydrophobicity of Streptococcus sanguis FC-1 and adherence to salivary pellicles.
A nonhydrophobic mutant of Streptococcus sanguis FC-1 was isolated which has a greatly diminished capacity for attaching to experimental salivary pellicles on hydroxyapatite surfaces and for aggregating with salivary components. The mutant appears to be defective in the synthesis of fimbriae, as judged by electron microscopic observations and by its inability to exhibit twitching motility.
متن کاملRecombination-deficient Streptococcus sanguis.
A UV-sensitive derivative was obtained from Streptococcus sanguis Challis. The organism could be transformed with a number of small streptococcal plasmids at frequencies equal to, or 1 logarithm below, the transformation frequencies for the parent organism. However, transformation with chromosomal DNA was greatly impaired in the UV-sensitive derivative.
متن کاملInfluence of Cigarette Smoking on the Activity of Salivary Alpha-Amylase
Introduction: Tobacco smoke is involved in the pathogenesis of several diseases in different body systems. Saliva is the first body fluid that confront inhaled cigarette smoke which is injurious to the oral cavity and is associated with several oral diseases and cancer. The aim of our study was to evaluate the influence of smoking on the activity of alpha-amylase in the saliva of healthy smoker...
متن کاملIdentification and preliminary characterization of a Streptococcus sanguis fibrillar glycoprotein.
Cell surface fibrils could be released from Streptococcus sanguis 12 but not from strains 12na or N by freeze-thawing followed by brief homogenization. Fibrils were isolated from the homogenate by ultracentrifugation or ammonium sulfate precipitation. Electron microscopy demonstrated the presence of dense masses of aggregated fibrils in these preparations. Under nondenaturing conditions, no pro...
متن کاملAcute septic arthritis due to Streptococcus sanguis.
OBJECTIVE To present a case of acute septic arthritis due to Streptococcussanguis, a member of the viridans group streptococci. CLINICAL PRESENTATION AND INTERVENTION A 73-year-old woman presented with fever and increasing swelling and pain of the right knee several weeks after she had been treated for severe periodontal disease. Arthrocentesis yielded purulent synovial fluid. S. sanguis was ...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1989
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.57.9.2853-2863.1989