HHLA2 Protein, Human (HEK293, Fc)

HHLA2 protein, a key immune regulator, interacts with TMIGD2, providing crucial costimulation for T-cells during TCR-mediated activation. This interaction amplifies T-cell proliferation and cytokine production through an AKT-dependent signaling cascade, revealing HHLA2's role in enhancing T-cell responses and immune modulation. HHLA2 Protein, Human (HEK293, Fc) is the recombinant human-derived HHLA2 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of HHLA2 Protein, Human (HEK293, Fc) is 344 a.a., with molecular weight of ~63.7 KDa.

The HHLA2 protein, a pivotal player in immune regulation, engages in a significant interaction with TMIGD2 to provide costimulation to T-cells during T-cell receptor (TCR)-mediated activation. This interaction, in turn, amplifies T-cell proliferation and cytokine production through an AKT-dependent signaling cascade. The collaboration between HHLA2 and TMIGD2 underscores the intricate molecular mechanisms involved in enhancing T-cell responses, shedding light on its role in immune modulation.

1.Measured by its binding ability in a functional ELISA.
2.Immobilized human TMIGD2 at 10 μg/mL (100 μL/well) can bind human HHLA2-Fc, the EC₅₀ of human HHLA2-Fc is 0.3-3 μg/mL.
3.Loaded Recombinant Human KIR3DL3 Protein, His Tag on His1K Biosensor, can bind Recombinant Human B7-H7/HHLA2 Protein, hFc Tag with an affinity constant of 51.8 nM as determined in BLI assay (Sartorius Octet RED384)

Human

HEK293

C-hFc

Q9UM44 (M1-N344)

11148  [NCBI]

Approximately 63.7 kDa.

Greater than 90% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. 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.

Room temperature in continental US; may vary elsewhere.