中文名称: 链球菌溶血素O
英文名称: Streptolysin O
CAS No: 98072-47-0
S60012 链球菌溶血素O ≥1000000 units/mg,from Streptococcus pyogenes (psaitong)
包装规格:
10ku in glass bottle
产品简介:
Streptolysin O,A组链球菌毒素,是一个氧不稳定原型胆固醇结合细菌外毒素。Streptolysin O 导致细胞裂解和心脏毒性。Streptolysin O 用于细胞膜的可控渗透性。Streptolysin O 以两种形式存在,即还原活性状态和氧化可逆不活动状态。
体外研究:
Streptolysin O is a labile toxin, and, with time, activity is irreversibly lost. The rate of activity loss is slowed by incubation with 0.1 M 2-mercaptoethanol or 0.01 M ethylenediaminetetraacetic acid (EDTA). Streptolysin O, belongs to the group of thiol-activated toxins, is a secreted virulence factor of GAS that induces apoptosis in neutrophils and macrophages at later time points (~4 h). Streptolysin O induces eukaryotic cell lysis in a cholesterol-dependent manner, is highly upregulated in the GAS M1T1 clone during bloodstream dissemination. Streptolysin O is known to promote Group A Streptococcus (GAS) resistance to phagocytic clearance by neutrophils, a critical first element of host defense against invasive bacterial infection.
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保存条件:
2-8℃
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质量 (g) = 浓度 (mol/L) x 体积 (L) x 分子量 (g/mol)

摩尔浓度计算公式

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稀释公式一般简略地表示为:C1V1 = C2V2 ( 输入 输出 )

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