C3a (70-77) TFA (Complement 3a (70-77) TFA) 是对应于 C3a 的 COOH 末端的八肽，表现出 C3a 的特异性和 1 至 2％ 的生物活性。
货号:ajcx13776
CAS:N/A
分子式:C37H62F3N13O12
分子量：937.96
溶解度:H2O: 100 mg/mL (106.61 mM)
纯度：98%
存储：Store at -20°C
库存：现货

Background:

C3a (70-77) TFA (Complement 3a (70-77) TFA) is an octapeptide corresponding to the COOH terminus of C3a, exhibits the specificity and 1 to 2% biologic activities of C3a[1][2].

The direct interaction of C3a(70-77) with human mononuclear leukocytes in culture results in a concentration-dependent inhibition of the generation of LIF evoked by mitogens and by the antigen SK-SD[1]. C3a (70-77) induces histamine release and degranulation of rat mast cells, promotes contraction of guinea pig ileal tissue, and enhances vascular permeability in human skin. C3a (70-77) selectively desensitizes ileal smooth muscle to C3a but not to human C5a, a related anaphylatoxin. The cross-desensitization indicates a specific interaction of C3a (70-77) with cellular C3a binding sites[2].

[1]. Payan DG, et al. Modulation of human lymphocyte function by C3a and C3a(70-77). J Exp Med. 1982 Sep 1;156(3):756-65. [2]. Caporale LH, et al. The active site of C3a anaphylatoxin. J Biol Chem. 1980 Nov 25;255(22):10758-63.