Overview
CD46 (MCP, membrane cofactor protein) is a multifunctional cell surface transmembrane protein that binds and inactivates C3b and C4b complement fragments, regulates T cell-induced inflammatory responses by either inhibiting (CD46-1 isoform) or increasing (CD46-2 isoform) the contact hypersensitivity reaction. CD46 also serves as a receptor for several human pathogens (both bacteria and viruses), and its ligation alteres T lymphocyte polarization toward antigen-presenting cells or target cells, inhibiting lymphocyte function. CD46 is a protector of placental tissue and is also expressed on the inner acrosomal membrane of spermatozoa.
Specificity:
The antibody MEM-258 recognizes an extracellular epitope on SCR4 (the membrane-proximal SCR) domain of CD46 (Membrane cofactor protein) . CD46 is 56-66 kDa dimeric transmembrane protein expressed on T and B lymphocytes, platelets, monocytes, granulocytes, endothelial cells, epithelial cells and fibroblast; it is negative on erythrocytes.
Antigen
CD46
Clone
MEM-258
Species Reactivity
Cow, Human
Negative Species
N/A
Isotype
Mouse IgG1
Immunogen
HPB-ALL human T cell line
Application
FC (QC tested)
Regulatory status
RUO
Concentration
N/A
Format
PE
Storage / Stability
Store at 2-8°C. Protect from prolonged exposure to light. Do not freeze.
Storage Buffer
Stabilizing phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide