نتایج جستجو برای: component leukocidin
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background: staphylococcus aureus has been recognized as a major human pathogen and is the major cause of nosocomial infections. gamma-toxin, leukocidin and other bi-component toxins are a family of proteins encoded by the hlg and luk-pv, respectively. panton-valentine leukocidin (pvl) is an example of these toxins and causes leukocyte destruction and tissue necrosis. the aim of this study was ...
7-hemolysin, consist of two protein component, i.e,, F and S fbr leukocidin and H7I and H7II fbr 7-hemolysin, We have reported the cloning and sequencing of the leukocidin genes lukS and inkF from MRSA No. 4,2'3) In a previous report4) we purified both H7I and Hvll components to hornogeneity from S. aureus, compared their properties with those of the F and S components of leukocidin, and sugges...
The response of the leukocyte to leukocidin and its relevance to excitable and secreting tissues are described. New data are presented on the leukocyte membrane phosphatases and the action of tetraethylammonium ion (TEA) on the leukocyte. The leukocyte surface membrane lacks a cation-sensitive ATPase but possesses a potassium- and ouabain-sensitive p-nitrophenyl phosphatase. The p-nitrophenyl p...
BACKGROUND Staphylococcus aureus has been recognized as a major human pathogen and is the major cause of nosocomial infections. Gamma-toxin, leukocidin and other bi-component toxins are a family of proteins encoded by the hlg and luk-PV, respectively. Panton-Valentine leukocidin (PVL) is an example of these toxins and causes leukocyte destruction and tissue necrosis. The aim of this study was t...
Bicomponent pore-forming leukocidins are a family of potent toxins secreted by Staphylococcus aureus, which target white blood cells preferentially and consist of an S- and an F-component. The S-component recognizes a receptor on the host cell, enabling high-affinity binding to the cell surface, after which the toxins form a pore that penetrates the cell lipid bilayer. Until now, six different ...
The incidence of myositis has been increasing since the advent of the epidemic of community-associated methicillin-resistant Staphylococcus aureus infection, and Panton-Valentine leukocidin has been implicated as a factor contributing to more-severe muscle injury. We report a case of severe myositis accompanying septic osteomyelitis and necrotizing fasciitis caused by a Panton-Valentine leukoci...
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