產(chǎn)品貨號：A114
產(chǎn)品名稱：Quidel Complement Activator(補體活化劑)
產(chǎn)品規(guī)格：0.2 mL
產(chǎn)品品牌：Quidel

熱聚合伽馬球蛋白作為一種有效的經(jīng)典補體途徑激活劑，其功能類似于天然存在的免疫復(fù)合物。當(dāng)被強效激活劑（例如 Quidel 的補體激活劑）激活時,，給定補體源中的幾乎所有 C4 都可以轉(zhuǎn)化為裂解產(chǎn)物。

Quidel Complement Activator(補體活化劑)產(chǎn)品描述：

   The classical pathway of complement can be triggered by antibody bound to a foreign particle (immune complex, cell or other material). Particles of this type interact directly with C1q. C1q can then activate the C1r(2)C1s(2) sub-units of the C1 complex. The activated C1s cleaves C4 to C4b near the amino terminus of the gamma chain releasing C4a in the process. Activation of the Classical Pathway is under stringent control in vivo. C4b is rapidly degraded to iC4b and then to C4c and C4d. Because of the short life of the C4b molecule, much of the C4d isfree and circulatesin serum. Assuch C4d is an excellent marker for classical complement activation in vivo or in vitro and istherefore the basis of the MicroVueTM C4d EIA Kit (Item A008).

    The activity of the resulting complement activator is assessed using the MicroVue C4d EIA kit. 10 µl of Activator is incubated with 1.0 mL of a reference serum (Normal Human Serum Complement, Cat. A113) at 37?C for 90 minutes. At fixed time points, samples of the reference serum are taken. Ice cold 20 mM EDTA is added to each sample to block further complement activation; the samples are stored on ice until assay. Upon completion of the activation phase, the resulting samples are assayed in the MicroVue C4d kit. The results (µg C4d/mL) are graphed vs. time for each sample. Full activation is shown by a rapid increase in C4d concentration followed by a plateau. Quidel’s complement activator will fully activate the classical complement pathway of the reference sera within 30 minutes at 37?C.