Anti-IL7 Antibody Picoband®

Interleukin 7  (IL-7) is a  protein  that in humans is encoded by the  IL7  gene. The protein encoded by this gene is a cytokine important for B and T cell development. This cytokine and the hepatocyte growth factor (HGF) form a heterodimer that functions as a pre-pro-B cell growth-stimulating factor. And it is found to be a cofactor for V (D) J rearrangement of the T cell receptor beta (TCRB) during early T cell development. In addition, this cytokine can be produced locally by intestinal epithelial and epithelial goblet cells, and may serve as a regulatory factor for intestinal mucosal lymphocytes. Knockout studies in mice suggested that this cytokine plays an essential role in lymphoid cell survival. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional splice variants have been described but their presence in normal tissues has not been confirmed.

E. coli-derived mouse IL7 recombinant protein (Position: E26-I154) . Mouse IL7 shares 56.4% and 87.6% amino acid (aa) sequence identity with human and rat IL7, respectively.

Expressed in skin, thymus, stomach, tonsils, testis, placenta, kidney, pancreas, mammary gland, bladder, thyroid, salivary gland and trachea, but not detected in heart, brain, liver, lung, bone marrow, small intestine, spleen, prostate, colon, or adrenal gland (PubMed:19384417) . In the skin, mainly expressed in stratum granulosum of the epidermis (PubMed:1429717) (PubMed:19384417) . .

Hematopoietic growth factor capable of stimulating the proliferation of lymphoid progenitors. It is important for proliferation during certain stages of B-cell maturation.

1. Goodwin RG, Lupton S, Schmierer A, Hjerrild KJ, Jerzy R, Clevenger W, Gillis S, Cosman D, Namen AE (January 1989) . Human interleukin 7: molecular cloning and growth factor activity on human and murine B-lineage cells. Proc. Natl. Acad. Sci. U.S.A. 86 (1) : 302–6. 2. Lupton SD, Gimpel S, Jerzy R, et al. (1990) . Characterization of the human and murine IL-7 genes. J. Immunol. 144 (9) : 3592–601. 3. Sutherland GR, Baker E, Fernandez KE, Callen DF, Goodwin RG, Lupton S, Namen AE, Shannon MF, Vadas MA (July 1989) . The gene for human interleukin 7 (IL7) is at 8q12-13. Hum. Genet. 82 (4) : 371–2.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.