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Anti-PECAM-1 Antibody, clone 2H8, Azide Free

clone 2H8, Chemicon®, from hamster(Armenian)

CD31, PECAM-1, Platelet endothelial cell adhesion molecule

Quality Level

biological source

hamster (Armenian)

antibody form

purified immunoglobulin

antibody product type

primary antibodies


2H8, monoclonal

species reactivity

mouse, canine




electron microscopy: suitable
flow cytometry: suitable
immunocytochemistry: suitable
immunofluorescence: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable
neutralization: suitable



NCBI accession no.

UniProt accession no.

shipped in

dry ice

General description

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).


React s with the 130-140 kDa protein, PECAM-1 found on mouse monocytes, platelets, granulocytes and endothelial cells. 2H8 effectively inhibits transmigration of activated polymophonuclear cells and monocytes across the endothelium. In a mouse model for acute peritonis - 2H8 blocks acute inflammation.


D10.G4.1 murine T cells (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843 -854).
Epitope: Extracellular domain.


Research Category
Cell Structure
Anti-PECAM-1 Antibody, clone 2H8, Azide Free detects level of PECAM-1 & has been published & validated for use in Elecron Microscopy, Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Immunoprecipitation, and Neutralization Assay.
Immunofluorescence Analysis: Representative lots immunostained endothelial blood vessel cells in 4% paraformaldehyde-fixed frozen tumor sections from mice and dogs as a means for assessing lymph vessel density in tumor xenografts by fluorescent immunohistochemistry (Donat, U., et al. (2012). PLoS One. 7(9):e45942; Gentschev, I., et al. (2012). PLoS One.7(5):e37239).
Immunofluorescence Analysis: A representative lot immunostained endothelial cells in formalin-fixed, paraffin-embedded murine peritoneum sections by fluorescent immunohistochemistry (Tanabe, K., et al. (2007). Kidney Int. 71(3):227-238).
Immunocytochemistry Analysis: A representative lot immunostained 4% paraformaldehyde-fixed endothelial cells differentiated from murine ESCs in cultures (Purpura, K.A., et al. (2008). Stem Cells. 26(11):2832-2842).
Immunocytochemistry Analysis: Clone 2H8 immunostained 3% paraformaldehyde-fixed, 0.5% NP-40-permeabilized COS-7 transfectants expressing murine, but not human, CD31 by fluorescent immunocytochemistry (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Neutralization Analysis: A representative lot, when injected intravenously in mice, blocked leukocyte emigration in response to thioglycollate injection (Bogen, S., et al. (1994). J. Exp. Med. 179(3):1059-1064).
Neutralization Analysis: A representative lot blocked murine PECAM-mediated aggregation of mouse L cells (Xie, Y., and Muller, W.A. (1993). Proc. Natl. Acad. Sci. U. S. A. 190(12):5569-5573).
Flow Cytometry Analysis: A representative lot detected the expression of exogenously transfected murine CD31 on the surface of mouse L cells (Xie, Y., and Muller, W.A. (1993). Proc. Natl. Acad. Sci. U. S. A. 190(12):5569-5573).
Flow Cytometry Analysis: Clone 2H8 detected CD31 immunoreactivity on the surface of various murine B- and T-cell lines (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Immunoprecipitation Analysis: A representative lot immunoprecipitated exogenously expressed murine, but not human, CD31 from COS-7 transfectants (Xie, Y., and Muller, W.A. (1993). Proc. Natl. Acad. Sci. U. S. A. 190(12):5569-5573).
Immunoprecipitation Analysis: Clone 2H8 immunoprecipitated CD31 from murine CTLL T lymphocytes and Sp2/0 B lymphocytes (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Electron Microscopy Analysis: Clone 2H8 was biotinylated and immunostained lymphocytes in 0.01% glutaraldehyde-/2% formaldehyde-fxed frozen reactive lymph node tissues from KLH-immunized mice (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Immunohistochemistry Analysis: Clone 2H8 immunostained lymphocytes adherent to the sinusoidal and postcapillary venular endothelium of frozen reactive lymph node tissues from KLH-immunized mice (Bogen, S.A., et al. (1992). Am. J. Pathol. 141(4):843-854).
Research Sub Category
Adhesion (CAMs)


Replaces: 04-1074

Physical form

Protein A Purified mouse immunoglobulin in 20 mM sodium phosphate, 250 mM NaCl, pH. 7.6, containing no preservatives.
Format: Purified
Protein A purified

Storage and Stability

Maintain for 2 years at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Analysis Note

Mouse cell lung tissue

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Hedgehog signaling in the posterior region of the mouse gastrula suggests manifold roles in the fetal-umbilical connection and posterior morphogenesis.
Daane, JM; Downs, KM
Developmental Dynamics null
Formulation optimization and in vivo proof-of-concept study of thermosensitive liposomes balanced by phospholipid, elastin-like polypeptide, and cholesterol.
Park, SM; Cha, JM; Nam, J; Kim, MS; Park, SJ; Park, ES; Lee, H; Kim, HR
Testing null
Ocular phenotype of Fbn2-null mice.
Shi, Y; Tu, Y; Mecham, RP; Bassnett, S
Investigative Ophthalmology & Visual Science null
S Bogen et al.
The Journal of experimental medicine, 179(3), 1059-1064 (1994-03-01)
A murine model of peritonitis was used to test the role of platelet/endothelial cell adhesion molecule 1 (PECAM-1/CD31) in acute inflammation. A monoclonal antibody (mAb) specific for murine PECAM-1 injected intravenously 4 h before the intraperitoneal injection of thioglycollate broth
Preferential colonization of metastases by oncolytic vaccinia virus strain GLV-1h68 in a human PC-3 prostate cancer model in nude mice.
Donat, U; Weibel, S; Hess, M; Stritzker, J; Hartl, B; Sturm, JB; Chen, NG; Gentschev, I; Szalay, AA
Testing null

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