Perforin (PRF1) Antibody – Mouse Monoclonal

PRF1: Plays a key role in secretory granule-dependent cell death, and in defense against virus-infected or neoplastic cells. Plays an important role in killing other cells that are recognized as non-self by the immune system, e.g. in transplant rejection or some forms of autoimmune disease. Can insert into the membrane of target cells in its calcium-bound form, oligomerize and form large pores. Promotes cytolysis and apoptosis of target cells by facilitating the uptake of cytotoxic granzymes. Monomer, as sobluble protein. Homooligomer. Oligomerization is required for pore formation. Repressed by contact with target cells. Belongs to the complement C6/C7/C8/C9 family.

Protein type: Membrane protein, multi-pass

Cellular Component: cytoplasmic membrane-bound vesicle; cytoplasmic vesicle; endosome; extracellular region; extracellular space; integral to membrane; membrane; plasma membrane

Molecular Function: calcium ion binding; metal ion binding; wide pore channel activity

Biological Process: apoptosis; circadian rhythm; cytolysis; defense response to tumor cell; defense response to virus; formation of immunological synapse; immune response to tumor cell; protein homooligomerization; transmembrane transport