Overview
CD59 (protectin) is a small (18-20 kDa) GPI-anchored ubiquitously expressed inhibitor of the membrane attack complex (MAC) . It is thus the key regulator that preserves the autologous cells from terminal effector mechanism of the complement cascade. CD59 associates with C5b-8 complex and thereby counteracts appropriate formation of cytolytic pore within the plasma membrane. CD59 is also an low-affinity ligand of human CD2 and causes T cell costimulation.
Specificity:
The antibody MEM-43/5 reacts with well defined epitope (around L33) on CD59 (Protectin), a 18-20 kDa glycosylphosphatidylinositol (GPI) -anchored extracellular glycoprotein expressed on the surface of all hematopoietic cells; it is widely present on cells in all tissues. The MEM-43/5 does not compete with most other CD59 antibodies.
Antigen
CD59
Clone
MEM-43/5
Species Reactivity
Mouse, Human
Negative Species
N/A
Isotype
Mouse IgG2b
Immunogen
Thymocytes and T lymphocytes
Application
WB, FC (QC tested), IP, IHC (P)
Regulatory status
RUO
Concentration
1 mg/ml
Format
Purified
Storage / Stability
Store at 2-8°C. Do not freeze.
Storage Buffer
Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide