CD31/PECAM-1 Antibody (CO.3E-1D4) [DyLight 650]

• Reactivity: Bv, Gt, Sh
• Applications: Flow, IHC, IHC-Fr, IHC-P
• Clone: CO.3E-1D4
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: DyLight 650

CD31/PECAM-1 Antibody (CO.3E-1D4) [DyLight 650] Summary

• Immunogen: This CD31/PECAM-1 Antibody (CO.3E-1D4) was developed against Ovine leucocytes.
• Specificity: NB100-65900 is specific for ovine CD31, also known as PECAM-1. Ovine CD31 is predominantly expressed by peripheral blood platelets and a small percentage of lymphocytes. CD31 is also highly expressed by ovine endothelial cells.
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Mouse
• Gene: PECAM1
• Purity: Protein G purified

Applications/Dilutions

• Dilutions:
  • Flow Cytometry
  • Immunohistochemistry
  • Immunohistochemistry-Frozen
  • Immunohistochemistry-Paraffin
• Application Notes: Optimal dilution of this antibody should be experimentally determined.
• Theoretical MW: 82.5 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at 4C in the dark.
• Buffer: 50mM Sodium Borate
• Preservative: 0.05% Sodium Azide
• Purity: Protein G purified

Notes

Dylight (R) is a trademark of Thermo Fisher Scientific Inc. and its subsidiaries. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

Alternate Names for CD31/PECAM-1 Antibody (CO.3E-1D4) [DyLight 650]

• adhesion molecule
• CD31 antigen
• CD31
• CD31/EndoCAM
• EndoCAM
• FLJ34100
• FLJ58394
• GPIIA'
• PECA1
• PECAM1
• PECAM-1
• PECAM-1, CD31/EndoCAM
• platelet endothelial cell adhesion molecule
• platelet endothelial cell adhesion molecule-1
• platelet/endothelial cell adhesion molecule

Background

Cluster of differentiation (CD31), Platelet Endothelial Cell Adhesion Molecule 1 (PECAM-1), is a 30kDa type I transmembrane glycoprotein expressed by endothelial cells, platelets, leukocytes and some lymphocytes (e.g., B and T-cell subsets). Structurally, PECAM-1 consists of six extracellular immunoglobulin-like domains which serve to support various functions including homophilic binding, maintaining high expression of PECAM-1 within endothelial intercellular junctions, and supporting endothelial cell migration (1,2). PECAM's homophilic binding underscores its role in vascular barrier integrity and leukocyte trans-endothelial movement. However, PECAM may also engage in heterophilic interactions with molecules such as glycosaminoglycans (GAG), integrin alpha 5 beta 3, CD38 in lymphocytes and CD177/PR3 in neutrophils (2).

PECAM's intracellular cytoplasmic domain consists of a sequence of 118 amino acids and contains serine and tyrosine (also referred to as immunoreceptor tyrosine-based inhibitory motifs-ITIMs) residues, which may be phosphorylated upon cellular stimulation (3). ITIMs are phosphorylated by Src-family kinases and non-Src family kinases (e.g., Csk), leading to a conformational change which supports interactions with Src homology 2 (SH2) domain containing proteins such as protein-tyrosine phosphatase, SHP-2 (1,2). Formation of SHP-2/PECAM-1 complexes induces endothelial cell migration through the dephosphorylation of focal adhesion kinase and regulation of RhoA activity (1). Signaling downstream of ITIM tyrosine phosphorylations also plays a role in PECAM's anti-apoptotic activity, a function which is independent of its interaction with SHP-2. In platelets and leukocytes, phosphorylation of PECAM's cytosolic domain is inhibitory, preventing their activation.

References

1. Lertkiatmongkol, P., Liao, D., Mei, H., Hu, Y., & Newman, P. J. (2016). Endothelial functions of PECAM-1 (CD31). Current Opinion in Hematology. https://doi.org/10.1097/MOH.0000000000000239.Endothelial

2. Privratsky, J. R., & Newman, P. J. (2014). PECAM-1: Regulator of endothelial junctional integrity. Cell and Tissue Research. https://doi.org/10.1007/s00441-013-1779-3

3. Newman, P. J., & Newman, D. K. (2003). Signal transduction pathways mediated by PECAM-1: New roles for an old molecule in platelet and vascular cell biology. Arteriosclerosis, Thrombosis, and Vascular Biology. https://doi.org/10.1161/01.ATV.0000071347.69358.D9

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: PECAM1