JAM-B/CD322 Protein, Rat (HEK293, His)

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Based on 1 Customer Validation

Junctional adhesion molecule 2 (Jam2, Jam-B, CD322) is a member of the immunoglobulin superfamily, and the junctional adhesion molecule (JAM) family. Jam2 is a type I membrane protein that is localized at the tight junctions of both epithelial and endothelial cells. Jam2 has integrin alpha-4/beta-1 binding activity and an inhibitory somatodendritic cue. JAM-B/CD322 Protein, Rat (HEK293, His) is the recombinant rat-derived JAM-B/CD322 protein, expressed by HEK293 , with C-His labeled tag.

For research use only. We do not sell to patients.
  • Species: Rat
  • Source: HEK293
  • Storage:
    Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

Junctional adhesion molecule 2 (Jam2, Jam-B, CD322) is a member of the immunoglobulin superfamily, and the junctional adhesion molecule (JAM) family. Jam2 is a type I membrane protein that is localized at the tight junctions of both epithelial and endothelial cells. Jam2 has integrin alpha-4/beta-1 binding activity and an inhibitory somatodendritic cue. JAM-B/CD322 Protein, Rat (HEK293, His) is the recombinant rat-derived JAM-B/CD322 protein, expressed by HEK293 , with C-His labeled tag.

Background

Junctional adhesion molecule 2 (Jam2, Jam-B, CD322) is a member of the immunoglobulin superfamily, and the junctional adhesion molecule (JAM) family. Jam2 is a type I membrane protein that is localized at the tight junctions of both epithelial and endothelial cells. Jam2 acts as an adhesive ligand for interacting with a variety of immune cell types, and may play a role in lymphocyte homing to secondary lymphoid organs. Jam2 also has integrin alpha-4/beta-1 binding activity and plays an important role in numerous cellular processes, such as tight junction assembly, spermatogenesis, regulation of paracellular permeability, leukocytic transmigration, angiogenesis, tumor metastasis and cell proliferation. Additionally, Jam2 functions as an inhibitory somatodendritic cue, preventing the myelination of non-axonal parts of neurons, contributes to myocyte fusion during myogenesis [1][2][3].

Verified Bioactivity

Measured by the ability of the immobilized protein to support the adhesion of Jurkat human leukemic T cells. When 8 × 104 cells/well are added to CD322-coated plates (5 μg/mL and 100 μL/well), approximately 43.87% will adhere specifically after 60 minutes at 37°C.

MCE Validation Data

  • Purity - SDS-PAGE

    Purity - SDS-PAGE

    ≥ 95%, as determined by reducing SDS-PAGE.

Technical Parameters

  • Species Rat
  • Source HEK293
  • Tag C-His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • JAM-A (F29-N236)
      Accession # Q3MHC0
    • His
    • C-term
  • Protein Length

    Partial

  • Synonyms

    JAM2; CD322; Prev. C21orf43; VEJAM; VE-JAM; JAM-IT/VE-JAM; JAM-B; CD322 Antigen; JAM-2; PRO245; Vascular Endothelial Junction-Associated Molecule; IBGC8; Junctional Adhesion Molecule B; Junctional Adhesion Molecule 2; JAMB

  • AA Sequence

    FSASKDHRQEVSVIEYQEAILACKTPKKTTSSRLEWKKLGQGVSLVYYQQALQGDFKDRAEMIDFNIRIKNVTRHDAGEYRCEVSAPTEQGQNLQEDTVMLEVLVAPAVPSCEVPTSVMSGSVVELRCQEKEGNPAPEYIWFKDGTSLLGNPKGGAHRNSSYTMNTKSGTLQFNMISKMDSGEYYCEARNSVGHRRCPGKRMQVDVLN

  • Molecular Weight

    Approximately 43 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Calculators

Reconstitution Calculator

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) Volume (to add to vial)
=
Mass (in vial) Mass (in vial)
÷
Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

Concentration (start) Concentration (start)
×
Volume (start) Volume (start)
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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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