Production of Staphylococcal Alpha Toxin I. Relationship Between Cell Growth and Toxin Formation
نویسندگان
چکیده
منابع مشابه
Ultracentrifugal analysis of staphylococcal alpha toxin.
Ultracentrifugal examination of staphylococcal alpha toxin at different stages of purification showed the presence of a major component having a sedimentation coefficient of 2.8S, present to the extent of more than 90% of the sample, and identifiable with active toxin. Several minor components having S(20,w) values of 11.5S, 8.5S, and 2.0S were detected. The 11.5S component presumably is identi...
متن کاملInterferons increase cell resistance to Staphylococcal alpha-toxin.
Many bacterial pathogens, including Staphylococcus aureus, use a variety of pore-forming toxins as important virulence factors. Staphylococcal alpha-toxin, a prototype beta-barrel pore-forming toxin, triggers the release of proinflammatory mediators and induces primarily necrotic death in susceptible cells. However, whether host factors released in response to staphylococcal infections may incr...
متن کاملThe H35A mutated alpha-toxin interferes with cytotoxicity of staphylococcal alpha-toxin.
Staphylococcal alpha-toxin is an important virulence factor for Staphylococcus aureus to cause severe infections. In this study, we explored whether the toxoid of alpha-toxin may be utilized to block the toxicity of wild-type alpha-toxin. We created a series of H35A mutated alpha-toxin expression strains and revealed that the H35A mutation eliminates the activity of alpha-toxin using a human lu...
متن کاملInteraction of staphylococcal alpha toxin and the estrogenic hormone diethylstilbestrol.
Previous work in this laboratory showed that diethylstilbestrol was capable of suppressing induced furunculosis in rabbits. The present study indicates that the synthetic estrogenic hormone diethylstilbestrol which is used for acne, estrogen deficiency, cancer, and other disorders, can reduce the cytolytic action of staphylococcal alpha toxin. The cytotoxic action of purified alpha toxin for ti...
متن کاملDistribution of 3H-labeled staphylococcal alpha-toxin and a toxin fragment in mice.
Staphylococcal alpha-toxin and a toxin fragment were labeled with N-succinimidyl[2,3-3H]propionate. The labeled compounds retained greater than 95% biological activity. The distribution of labeled staphylococcal alpha-toxin and alpha-toxin fragment after intravenous administration to BALB/c mice was studied with whole-body and microautoradiography. The animals were divided into three groups tha...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1971
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.4.4.456-461.1971