Profile: Creative Biomart provides recombinant proteins, diagnostic antibodies & antigens, diagnostic enzymes and pharmaceutical enzymes to clinical, molecular diagnostics, biopharmaceutical drug development & biological researches. Our recombinant human activin receptor, type-2, GST-tagged is a serine/threonine-protein kinase receptor. It is responsible for human hereditary hemorrhagic telangiectasia. Cytokines are a category of signaling molecules that are used extensively in cellular communication. They are proteins, peptides or glycoproteins. The action of cytokines may be autocrine, paracrine and endocrine. Cytokines are critical to the development and functioning of both the innate and adaptive immune response. Cytokines are often secreted by immune cells that have encountered a pathogen, thereby activating and recruiting further immune cells. Cytokines are also involved in several developmental processes during embryogenesis.