Human ESAM Alexa Fluor® 647-conjugated Antibody

Catalog # Availability Size / Price Qty
FAB4204R-100UG
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Human ESAM Alexa Fluor® 647-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human ESAM in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse ESAM is observed.
Source
Monoclonal Mouse IgG2b Clone # 408519
Immunogen
Mouse myeloma cell line NS0-derived recombinant human ESAM
Gln30-Ala247
Accession # Q96AP7
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Label
Alexa Fluor 647

Applications

Recommended Concentration
Sample
Flow Cytometry
0.25-1 µg/106 cells
HUVEC human umbilical vein endothelial cells

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.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

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
  1. Hirata, K-I. et al. (2001) J. Biol. Chem. 276:16223.
  2. Nasdala, I. et al. (2002) J. Biol. Chem. 277:16294.
  3. Wegmann, F. et al. (2004) Exp. Cell Res. 300:121.
  4. 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

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