Human ESAM Antibody

Catalog #: MAB42042 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB42042-100
MAB42042-SP

Detection of ESAM in HUVECs by Flow Cytometry.

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Human ESAM Antibody Summary

Species Reactivity

Human

Specificity

Detects human ESAM in direct ELISAs.

Source

Monoclonal Mouse IgG_2B Clone # 1021723

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant human ESAM
Gln30-Ala247
Accession # Q96AP7

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Flow Cytometry

0.25 µg/10⁶ cells

HUVEC human umbilical vein endothelial cells

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry

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Detection of ESAM in HUVECs by Flow Cytometry. HUVEC human umbilical vein endothelial cells were stained with Mouse Anti-Human ESAM Monoclonal Antibody (Catalog #MAB42042, filled histogram) or Mouse IgG2B isotype control antibody (MAB0041, open histogram) followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (F0102B). Staining was performed using our Staining Membrane-associated Proteins protocol.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: ESAM

Endothelial cell-selective adhesion molecule (ESAM) is a 55 kDa type I transmembrane glycoprotein that belongs to the JAM family of immunoglobulin superfamily molecules (1, 2). Human ESAM is synthesized as a 390 amino acid (aa) protein composed of a 29 aa signal peptide, a 216 aa extracellular region, a putative 26 aa transmembrane segment, and a 119 aa cytoplasmic domain. The extracellular region contains one V-type and one C2-type Ig domain and is involved in homophilic adhesion (1). In the cytoplasmic domain, there is a docking site for the multifunctional adaptor protein MAGI-1 (3). The extracellular region of human ESAM shows 90%, 74%, 69%, and 67% aa identity with monkey, canine, mouse, and rat extracellular ESAM, respectively. ESAM is expressed on endothelial cells, activated platelets, and megakaryocytes and can be found associated with cell-to-cell junctions. Whether ESAM is restricted to a particular junctional type is not clear (1, 2). ESAM deficient mice have no defect in vascularization but do have reduced angiogenic potential. This may be due to a decreased migratory response to FGF-2 (4).

References

Hirata, K-I. et al. (2001) J. Biol. Chem. 276:16223.
Nasdala, I. et al. (2002) J. Biol. Chem. 277:16294.
Wegmann, F. et al. (2004) Exp. Cell Res. 300:121.
Ishida, T. et. al. (2003) J. Biol. Chem. 278:34598.

Long Name

Endothelial Cell Adhesion Molecule

Entrez Gene IDs

90952 (Human); 69524 (Mouse)

Alternate Names

2310008D05Rik; endothelial cell adhesion molecule; endothelial cell-selective adhesion molecule; ESAM; HUEL (C4orf1)-interacting protein; LP4791 protein; W117m