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Recombinant Mouse JAM-A Fc Chimera Protein, CF

Catalog # 1077-JM | R&D Systems, Inc. a Bio-Techne Brand
Catalog #
Size / Price

Key Product Details



Accession #

Structure / Form

Disulfide-linked homodimer





Product Specifications


Mouse myeloma cell line, NS0-derived mouse JAM-A protein
Mouse JAM-A
(Lys27 - Ala242)
Accession # O88792
(Pro100 - Lys330)
N-terminus C-terminus


>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis


Predicted Molecular Mass

50 kDa (monomer)


55 - 65 kDa, reducing conditions


Bioassay data are not available.

Formulation, Preparation and Storage

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitute at 100 μg/mL in sterile PBS.

Reconstitution Buffer Available:
Size / Price
Shipping The product is shipped at ambient temperature. Upon receipt, store it 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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: JAM-A

The family of junctional adhesion molecules (JAM), comprising at least three members, are type I transmembrane receptors belonging to the immunoglobulin (Ig) superfamily (1, 2). These proteins are localized in the tight junctions between endothelial or epithelial cells. Some family members are also found on blood leukocytes and platelets. Mouse JAM-A is predominantly expressed at intercellular junctions of both epithelial cells and endothelial cells (3). It is also expressed on circulating megakaryocytes. Mouse JAM-A cDNA predicts a 300 amino acid (aa) residue precursor protein with a putative 23 aa signal peptide, a 215 aa extracellular region containing two Ig-like V-subset domains, a 17 aa transmembrane domain and a 45 aa cytoplasmic domain. The human and mouse protein share approximately 67% aa sequence homology. Mouse JAM-A also shares approximately 35% aa sequence homology with mouse JAM-B or JAM-C. JAM-A exhibits homotypic interactions to regulate tight junction assembly and modulate paracellular permeability (1 - 3). The human JAM-A homotypic interation also mediates platelet aggregation and adhesion to endothelial cells and may play a role in thrombosis (4). JAM-A is involved in leukocyte adhesion and transmigration through the endothelium (3, 5). JAM-A has also been shown to bind reovirus attachment protein sigma-1 to permit reovirus infection and signal virus-induced apoptosis (6).


  1. Chavakis, T. et al. (2003) Thromb. Haemost. 89:13.
  2. Aurand-Lions, M. et al. (2001) Blood 98:3699.
  3. Martin-Padura, I. et al. (1998) J. Cell Biol. 142:117.
  4. Babinska, A. et al. (2002) Thromb. Haemost. 88:842.
  5. Del Maschio, A. et al. (1999) J. Exp. Med. 190:1351.
  6. Barton, E. S. et al. (2001) Cell 104:441.

Long Name

Junctional Adhesion Molecule A

Alternate Names

CD321, F11R, JAMA, PAM-1

Entrez Gene IDs

50848 (Human); 16456 (Mouse); 101925695 (Cynomolgus Monkey)

Gene Symbol



Product Documents for Recombinant Mouse JAM-A Fc Chimera Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Mouse JAM-A Fc Chimera Protein, CF

For research use only

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