Bioactive grade

Recombinant human PD-L2 protein (Fc Chimera Active) (ab221305)


  • Product name

    Recombinant human PD-L2 protein (Fc Chimera Active)
    See all PD-L2 proteins and peptides
  • Biological activity

    Measured by its binding ability in a functional ELISA. Immobilized ab221305 at 2 μg/mL (100 µL/well), can bind Human PD-1, His Tag with a linear of 0.08-1.25 μg/mL.

  • Purity

    > 95 % SDS-PAGE.

  • Endotoxin level

    < 1.000 Eu/µg
  • Expression system

    HEK 293 cells
  • Accession

  • Protein length

    Protein fragment
  • Animal free

  • Nature

    • Species

    • Sequence

    • Predicted molecular weight

      49 kDa including tags
    • Amino acids

      20 to 219
    • Additional sequence information

      This protein carries a mouse IgG1 Fc tag at the C terminus.

Associated products


Our Abpromise guarantee covers the use of ab221305 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


    Functional Studies

  • Form

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Store at -20°C long term. Avoid freeze / thaw cycle.

    pH: 7.50
    Constituents: 5% Trehalose, 0.75% Glycine, 0.61% Tris buffer, Sodium chloride, L-Arginine

    Lyophilized from 0.22 µm filtered solution.

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • Reconstitution
    It is recommended to reconstitute the lyophilized product in sterile deionized water to a final concentration of 1 mg/mL. Solubilize for 30 to 60 minutes at room temperature with occasional gentle mixing. Carrier protein (0.1% HSA or BSA) is strongly recommended for further dilution and long term storage.

General Info

  • Alternative names

    • B7 dendritic cell molecule
    • B7-DC
    • B7DC
    • bA574F11.2
    • Btdc
    • Butyrophilin B7 DC
    • Butyrophilin B7-DC
    • Butyrophilin B7DC
    • CD 273
    • CD273
    • CD273 antigen
    • MGC142238
    • MGC142240
    • PD 1 ligand 2
    • PD L2
    • PD-1 ligand 2
    • PD-L2
    • PD1 ligand 2
    • PD1L2_HUMAN
    • PDCD 1 ligand 2
    • PDCD1 ligand 2
    • PDCD1L2
    • Pdcd1lg2
    • PDL 2
    • PDL2
    • Programmed cell death 1 ligand 2
    • Programmed death ligand 2
    see all
  • Function

    Involved in the costimulatory signal, essential for T-cell proliferation and IFNG production in a PDCD1-independent manner. Interaction with PDCD1 inhibits T-cell proliferation by blocking cell cycle progression and cytokine production.
  • Tissue specificity

    Highly expressed in heart, placenta, pancreas, lung and liver and weakly expressed in spleen, lymph nodes and thymus.
  • Sequence similarities

    Belongs to the immunoglobulin superfamily. BTN/MOG family.
    Contains 1 Ig-like C2-type (immunoglobulin-like) domain.
    Contains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Cellular localization

    Secreted; Cell membrane and Endomembrane system.
  • Information by UniProt


  • FACS analysis shows that the binding of Human PD-L2, mouse IgG1 Fc Tag to 293 overexpressing PD-1 was inhibited by increasing concentration of neutralizing anti-PD-1 antibody. The concentration of PD-L2 used is 0.1 µg/ml. The IC50 is 1.3 µg/mL.
  • Flow Cytometry assay shows that recombinant Human PD-L2, mouse IgG1 Fc Tag can bind to 293 cell overexpressing human PD-1. The concentration of PD-L2 used is 0.1 µg/ml.
  • Immobilized Human PD-1, His Tag at 2 µg/mL (100 µL/well) can bind Human PD-L2, Mouse IgG1 Fc Tag with a linear range of 10-156 ng/mL.
  • SDS-PAGE - Human PD-L2 protein (Fc Chimera Active) (ab221305).

    ab221305 on SDS-PAGE under reducing (R) conditions.

    The gel was stained overnight with Coomassie Blue.


ab221305 has not yet been referenced specifically in any publications.

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