CD28 Antibody – Rabbit Polyclonal

CD28: a type I plasma membrane protein Involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival. Binds to B7-1 and -2. Expressed in T cells and plasma cells, but not in less mature B cells. Six splice-variant isoforms have been described.

Protein type: Membrane protein, integral; Cell surface

Chromosomal Location of Human Ortholog: 2q33

Cellular Component: integral to plasma membrane; plasma membrane; immunological synapse; cytosol; external side of plasma membrane

Molecular Function: identical protein binding; protein binding; protease binding; SH3/SH2 adaptor activity; coreceptor activity

Biological Process: positive regulation of isotype switching to IgG isotypes; viral reproduction; positive regulation of translation; nerve growth factor receptor signaling pathway; positive regulation of interleukin-2 biosynthetic process; cytokine biosynthetic process; T cell receptor signaling pathway; positive regulation of inflammatory response to antigenic stimulus; cell surface receptor linked signal transduction; positive regulation of T cell proliferation; regulatory T cell differentiation; epidermal growth factor receptor signaling pathway; positive regulation of viral genome replication; phosphoinositide-mediated signaling; fibroblast growth factor receptor signaling pathway; positive regulation of mitosis; negative thymic T cell selection; regulation of defense response to virus by virus; humoral immune response; positive regulation of phosphoinositide 3-kinase cascade; positive regulation of protein kinase B signaling cascade; T cell costimulation; innate immune response; positive regulation of transcription from RNA polymerase II promoter; positive regulation of alpha-beta T cell proliferation