Recombinant Human CD69 Protein (Catalog#11150-H08H)
Preparation
Produced in rabbits immunized with purified, recombinant Human CD69 (rh CD69; Catalog#11150-H08H; NP_001772.1; Ser62-Lys199). CD69 specific IgG was purified by Human CD69 affinity chromatography.
Source
Polyclonal Rabbit IgG
Purification
Protein A & Antigen Affinity
Formulation
0.2 μm filtered solution in PBS
Conjugate
Unconjugated
Form
Liquid
Shipping
This antibody is shipped as liquid solution at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free. Avoid repeated freeze-thaw cycles.
Early activation antigen CD69, also known as activation inducer molecule (AIM), is a single-pass type II membrane protein. Recently, cDNA clones encoding human and mouse CD69 were isolated and showed CD69 to be a member of the C-type lectin superfamily. It is one of the earliest cell surface antigens expressed by T cells following activation. Once expressed, CD69 acts as a costimulatory molecule for T cell activation and proliferation. In addition to mature T cells, CD69 is inducibly expressed by immature thymocytes, B cells, natural killer (NK) cells, monocytes, neutrophils and eosinophils, and is constitutively expressed by mature thymocytes and platelets. CD69 is involved in lymphocyte proliferation and functions as a signal transmitting receptor in lymphocytes, natural killer (NK) cells, and platelets. The structure, chromosomal localization, expression and function of CD69 suggest that it is likely a pleiotropic immune regulator , potentially important in the activation and differentiation of a wide variety of hematopoietic cells. This membrane molecule transiently expresses on activated lymphocytes, and its selective expression in inflammatory infiltrates suggests that it plays a role in the pathogenesis of inflammatory diseases. CD69 plays a crucial role in the pathogenesis of allergen-induced eosinophilic airway inflammation and hyperresponsiveness and that CD69 could be a possible therapeutic target for asthmatic patients.
References
Ziegler SF, et al. (1994) The activation antigen CD69. Stem Cells. 12(5): 456-65.
Marzio R, et al. (1999) CD69 and regulation of the immune function. Immunopharmacol Immunotoxicol. 21(3): 565-82.
Lamana A, et al. (2006) The role of CD69 in acute neutrophil-mediated inflammation. Eur J Immunol. 36(10): 2632-8.
Miki-Hosokawa T, et al. (2009) CD69 controls the pathogenesis of allergic airway inflammation. J Immunol. 183(12): 8203-15.