echnic 发表于 2025-3-28 15:27:42
Staphylococcal alpha-toxin, binding possibly occurs to clustered phosphocholine head groups in cholesterol/sphingomyelin-rich membrane microdomains. Toxin heptamers can rapidly assemble at such sites, and oligomerization triggers conformational changes leading to insertion of an amphipathic hairpin b-barrel sequence into the谁在削木头 发表于 2025-3-28 20:44:20
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zymocin and other plasmid-encoded yeast killer toxins, inter-yeast pathogenesis. Molecularly, gene disruption and shuffle techniques have proven powerful means to study components essentially required for the maintenance of the killer plasmid system, namely, autonomously operating replication and transcription apparatuses. Moreover, by studying zymocinInterferons 发表于 2025-3-29 03:43:06
The , killer toxins,They bear some similarity to other families of protein toxins, which are ubiquitous in nature. The three known . killer toxins typify, in many respects, the class of killer toxins. Two of them appear to exert their effects by affecting ion fluxes. Two are processed by a Golgi enzyme apparently extanresuscitation 发表于 2025-3-29 08:30:43
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http://reply.papertrans.cn/64/6331/633023/633023_46.pngBUCK 发表于 2025-3-29 19:22:01
Ricin: structure, synthesis, and mode of action,tein synthesis. Structurally, ricin is a heterodimer comprised of an enzymatic polypeptide (the A chain) disulphide bonded to a cell-binding lectin (the B chain). After surface binding, the holotoxin is internalised to endosomes from where a small fraction can be transported by a retrograde route toCROAK 发表于 2025-3-29 20:04:59
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http://reply.papertrans.cn/64/6331/633023/633023_49.pngDawdle 发表于 2025-3-30 05:38:14
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