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CD31/PECAM-1 Antibody (MEC13.3) - BSA Free

Novus Biologicals, part of Bio-Techne | Catalog # NB600-1475

Novus Biologicals, part of Bio-Techne

Key Product Details

Species Reactivity

Validated:

Human, Mouse

Cited:

Human, Mouse

Applications

Validated:

CyTOF-ready, Flow (Cell Surface), Flow Cytometry, Immunocytochemistry/Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunoprecipitation, In vitro assay, In vivo assay

Cited:

Flow Cytometry, IF/IHC, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, In vivo assay, In-vitro

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2a Kappa Clone # MEC13.3

Format

BSA Free

Concentration

1.0 mg/ml

Product Specifications

Immunogen

This CD31/PECAM-1 Antibody (MEC13.3) was developed against mouse endothelial cell line T-end.

Reactivity Notes

Mouse (PMID: 7956830) and Human (PMID: 30626719) reactivity reported in scientific literature.

Localization

Membrane; Single-pass type I membrane protein. Cell junction.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2a Kappa

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.

Scientific Data Images for CD31/PECAM-1 Antibody (MEC13.3) - BSA Free

Immunocytochemistry/Immunofluorescence: CD31/PECAM-1 Antibody (MEC13.3) [NB600-1475] - Mouse MS1 cells were fixed in 4% paraformaldehyde for 10 minutes and permeabilized in 0.05% Triton X-100 in PBS for 5 minutes. The cells were incubated with CD31/PECAM-1 Antibody [MEC13.3] (NB600-1475) at 1ug/ml overnight at 4C and detected with an anti-rat DyLight 488 (Green) at a 1:1000 dilution for 60 minutes. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 100X objective and digitally deconvolved.
Immunohistochemistry-Frozen: CD31/PECAM-1 Antibody (MEC13.3) [NB600-1475] - 4T1 tumor sections were stained for CD31 (green) and CD105 (red).
Flow (Cell Surface): CD31/PECAM-1 Antibody (MEC13.3) [NB600-1475] - A surface stain was performed on WEHI-3 Cells with CD31/PECAM-1 Antibody (MEC13.3) (NB600-1475, blue) and a matched isotype control (orange). Cells were incubated in an antibody dilution of 2.5 ug/mL for 20 minutes at room temperature, followed by rat F(ab)2 IgG (H+L) APC-conjugated secondary antibody (F0113, R&D Systems).

Applications for CD31/PECAM-1 Antibody (MEC13.3) - BSA Free

Application
Recommended Usage

Flow (Cell Surface)

2.5 ug/ml

Flow Cytometry

2.5 ug/ml

Immunocytochemistry/Immunofluorescence

1:500 - 1:1000

Immunohistochemistry

1:100-1:500

Immunohistochemistry-Frozen

1:100

Immunoprecipitation

1:10-1:500

In vitro assay

reported in scientific literature (PMID 24647208)

In vivo assay

reported in scientific literature
Application Notes
This CD31/PECAM1 Antibody (MEC13.3) is useful for in vitro and in vivo blocking of CD31-mediated cell-cell interactions. Please Note: NB600-1475 works well on acetone-fixed frozen sections as well as zinc-fixed paraffin-embedded sections. However, it is not recommended for formalin-fixed paraffin-embedded sections due to inconsistent results. This antibody is CyTOF ready.

Reviewed Applications

Read 2 reviews rated 5 using NB600-1475 in the following applications:

Formulation, Preparation, and Storage

Purification

Protein G purified

Formulation

PBS

Format

BSA Free

Preservative

0.02% Sodium Azide

Concentration

1.0 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: CD31/PECAM-1

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

Long Name

Platelet Endothelial Cell Adhesion Molecule 1

Alternate Names

CD31, EndoCAM, PECA1, PECAM-1, PECAM1, MEC 13.3 CD31, MEC 13.3 Clone

Gene Symbol

PECAM1

Additional CD31/PECAM-1 Products

Product Documents for CD31/PECAM-1 Antibody (MEC13.3) - BSA Free

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for CD31/PECAM-1 Antibody (MEC13.3) - BSA Free

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.

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