Recombinant Human B7-DC/PD-L2/CD273 Protein (His Tag)

SKU: PKSH031704

Size: 100μg

Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.

Shipping: This product is provided as lyophilized powder which is shipped with ice packs.

Exp date: 12 months

Category ID_II: Recombinant Proteins

Category ID_III: Immune Checkpoint Proteins

Abbreviation:

Target Synonym: B7-DC;B7DC;Btdc;CD273;PD-L2;PDCD1L2;PDL2;bA574F11.2

Research Areas: immunology

Conjugation:

Target Species: Human

Expression Host: HEK293 Cells

Application: ELISA

Fusion tag: C-His

UNIProt ID: Q9BQ51

Accession: NP_079515.2

Background: Programmed death ligand 2 (PD-L2); also referred to as B7-DC and CD273; is a member of the B7 family of proteins including B7-1; B7-2; B7-H2; B7-H1 (PD-L1); and B7-H3. PD-L2 is a type I membrane protein and structurally consists of an extracellular region containing one V-like and one C-like Ig domain; a transmembrane region; and a short cytoplasmic domain. PD-L2 is expressed on antigen presenting cells; placental endothelium and medullary thymic epithelial cells; and can be induced by LPS in B cells; INF-γ in monocytes; or LPS plus IFN-γ in dendritic cells. The CD28 and B7 protein families are critical regulators of immune responses. PD-L2 and PD-L1 are two ligands for PD-1; member of the CD28/CTLA4 family expressed on activated lymphoid cells; and thus provide signals for regulating T cell activation and immune tolerance. The interaction of B7-DC/PD-1 exhibited a 2-6-fold higher affinity compared with the interaction of B7-H1/PD-1.

Concentration:

Activity: Immobilized recombinant human PD-L2 at 1 μg/ml (100 μl/well) can bind recombinant human PD1 with a linear range of 7.8-1000 ng/ml.

Sequence: Met 1-Pro 219

Purity: > 98 % as determined by reducing SDS-PAGE.

Formulation: Lyophilized from sterile PBS, pH 7.4
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.

Reconstitution: Please refer to the printed manual for detailed information.

Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method.

Calculated MW: 24 kDa

ObservedMW: 40-45 kDa