Recombinant Human Interleukin-1a/IL-1a

Source: E.coli. MW :18kD. Recombinant Human Interleukin-1 alpha is produced by our E.coli expression system and the target gene encoding Ser113-Ala271 is expressed. Interleukin-1 alpha (IL1a) is a cytokine member of the interleukin-1 family. IL-1 consists of two distinct forms: IL1a and IL1 beta that recognize the same cell surface receptors but are distinct proteins with approximately 25% amino acid sequence identity. IL1a is constitutively produced by epithelial cells and plays an essential role in maintenance of skin barrier function. Upon stimulation, a wide variety of cells including osteoblasts, monocytes, macrophages can be induced to express IL1a. IL1a possesses a wide range of metabolic, physiological, haematopoietic activities, and is critically involved in the regulation of the immune responses and inflammatory responses. Protein function: Produced by activated macrophages, IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells. [The UniProt Consortium]