Genetic evidence that bound coagulase of Staphylococcus aureus is not clumping factor
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منابع مشابه
Genetic evidence that bound coagulase of Staphylococcus aureus is not clumping factor.
Staphylococcus aureus Newman cells carry a surface receptor for fibrinogen called clumping factor. The bacteria also express coagulase, an extracellular protein that binds to prothrombin to form a complex with thrombinlike activity which coverts fibrinogen to fibrin. We have confirmed a recent report (M. K. Bodén and J.-I. Flock, Infect. Immun. 57:2358-2363, 1989) that coagulase can bind to fib...
متن کاملImmunogenicity analysis of Staphylococcus aureus clumping factor A genetic variants.
The staphylococcal adhesin clumping factor A (ClfA) has a variant amino acid sequence, generating the potential for alterations in epitope structure and immunogenicity of this vaccine candidate. We demonstrated for two recombinant ClfA(40-531) (a slightly truncated version of the fibrinogen-binding domain of ClfA containing amino acids 40 to 531) genetic variants that strain-specific epitopes a...
متن کاملVariation of bound coagulase of Staphylococcus aureus.
Duthie (1954) reported that bound coagulase (clumping factor) of staphylococei is released from the surface of autolysing cells into the medium of old broth cultures. Rosenblum and Jackson (1957) noticed occasional alteration of bound coagulase and pigment production after storage of staphylococci for months to years. Decrease in bound coagulase activity of freshly isolated hospital strains of ...
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The pathogenic role of staphylococcal coagulase and clumping factor was investigated in the rat model of endocarditis. The coagulase-producing and clumping factor-producing parent strain Staphylococcus aureus Newman and a series of mutants defective in either coagulase, clumping factor, or both were tested for their ability (i) to attach in vitro to either rat fibrinogen or platelet-fibrin clot...
متن کاملFibrinogen-binding protein/clumping factor from Staphylococcus aureus.
The binding of staphylococcal components to fibrinogen was studied. Fibrinogen-binding material from lysed staphylococcal cells or culture supernatants was affinity purified on fibrinogen-Sepharose and analyzed on Western (immuno-) blots by the use of fibrinogen and antifibrinogen antibodies. Two main bands of 87 and 19 kilodaltons (kDa) and a weaker band of 35 kDa bound specifically to fibrino...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1992
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.60.4.1514-1523.1992