Biolegend, 303143, Ultra-LEAF™ Purified anti-human CD31 Antibody, 100μg

CD31 is a 130-140 kD type I transmembrane glycoprotein also known as platelet endothelial cell adhesion molecule-1 (PECAM-1) or Endocam. It is expressed on monocytes, platelets, granulocytes, endothelial cells and lymphocyte subsets. CD31 has been reported to bind CD38 and be involved in wound healing, angiogenesis, and cellular migration in an inflammatory situation.
100μg
Verified Reactivity: Human, Cynomolgus, Rhesus
Reported Reactivity: African Green, Baboon
Antibody Type: Monoclonal
Host Species: Mouse
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application: FC - Quality tested IHC, ICC, Block - Reported in the literature, not verified in house
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 2.0 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Clone WM59 has been reported to recognize the D2 extracellular portion of CD31.Additional reported applications (for the relevant formats) include: immunofluorescence microscopy2, immunohistochemical staining of acetone-fixed frozen tissue sections8, blocking of platelet aggregation3, and spatial biology (IBEX)11,12. Clone WM59 is not recommended for immunohistochemical staining of formalin-fixed paraffin-embedded sections. The Ultra-LEAF™ purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 303143 & 303144).The purified WM59 antibody is useful as a capture antibody for a sandwich ELISA assay, when used in conjunction with biotin anti-human CD31 antibody (Cat. No. 536604) antibody as the detection antibody.
Application References(PubMed link indicates BioLegend citation): Schlossman S, et al. Eds. 1995. Leucocyte Typing V Oxford University Press. New York. Muczynski KA, et al. 2003. J. Am. Soc. Nephrol. 14:1336. (IF) Wu XW, et al. 1997. Arterioscl. Throm. Vas. 17:3154. (Block) Nagano M, et al. 2007. Blood 110:151. (FC) PubMed MacFadyen JR, et al. 2005. FEBS Lett. 579:2569. PubMed Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC) Sestak K, et al. 2007. Vet. Immunol. Immunopathol. 119:21. Wicki A, et al. 2012. Clin. Cancer Res. 18:454. (FC, IHC) PubMed Oeztuerk-Winder F, et al. 2012. EMBO J. 31:3431. (FC) PubMed Bushway ME, et al. 2014. Biol Reprod. 90(5): 110 (IF) PubMed Radtke AJ, et al. 2020. Proc Natl Acad Sci USA. 117:33455-33465. (SB) PubMed Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed
RRID: AB_2819927 (BioLegend Cat. No. 303143) AB_2819928 (BioLegend Cat. No. 303144)
Structure: Ig superfamily, type I transmembrane glycoprotein, 130-140 kD
Distribution: Monocytes, platelets, granulocytes, endothelial cells, lymphocyte subset
Function: Cell adhesion, signal transduction
Ligand/Receptor: CD38
Cell Type: Endothelial cells, Granulocytes, Lymphocytes, Monocytes, Neutrophils, Platelets
Biology Area: Angiogenesis, Cell Adhesion, Cell Biology, Immunology, Neuroinflammation, Neuroscience
Molecular Family: Adhesion Molecules, CD Molecules
Antigen References: DeLisser H, et al. 1994. Immunol. Today 15:490. Newman P, 1997. J. Clin. Invest. 99:3. Fawcett J, et al. 1995. J. Cell Biol. 128:1229.
Gene ID: 5175
UniProt: View information about CD31 on UniProt.org
Clone: WM59
Regulatory Status: RUO
Workshop: V P025
Other Names: PECAM-1, EndoCAM
Isotype: Mouse IgG1, κ
Q: Do you guarantee that your antibodies are totally pathogen free?
A: BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.