This antibody recognises PECAM-1 (CD31), a type 1 transmembrane protein expressed primarily on endothelial cells, platelets and leucocytes. Clone TLD-3A12 has been shown to partially block the proliferative response of antigen-specific CD4+ T cells to antigen-presenting cells and relevant antigen (3). We recommend the use of SM272LE for use in Functional Studies.
Purification
Affinity Chromatography on Protein G
Immunogen
Activated, Lewis rat derived microglial cells. Remarks: Spleen cells from immunised BALB/c mouse were fused with cells of the mouse SP2 myeloma cell line.
CD31, also known as platelet endothelial cell adhesion molecule 1 (PECAM1), is a type I integral membrane glycoprotein and a member of the immunoglobulin superfamily of cell surface receptors. It is constitutively expressed on the surface of endothelial cells, and concentrated at the junction between them. It is also weakly expressed on many peripheral lymphoid cells and platelets. CD31 has been used to measure angiogenesis in association with tumor recurrence. Other studies have also indicated that CD31 and CD34 can be used as markers for myeloid progenitor cells and recognize different subsets of myeloid leukemia infiltrates (granular sarcomas).Synonyms: End °CAM, GPIIA', PECAM-1, Platelet endothelial cell adhesion molecule