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  5. PD-L1 Protein, Mouse (220a.a, HEK293, Fc)

PD-L1 Protein, Mouse (220a.a, HEK293, Fc)

Cat. No.: HY-P70633
COA Handling Instructions

PD-L1 protein serves as a ligand for the inhibitory receptor PDCD1/PD-1 and is critical for maintaining immune tolerance. This interaction modulates T cell activation, limits effector responses and may stimulate IL10-producing T cell subsets. PD-L1 Protein, Mouse (220a.a, HEK293, Fc) is the recombinant mouse-derived PD-L1 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of PD-L1 Protein, Mouse (220a.a, HEK293, Fc) is 220 a.a., with molecular weight of 66-90 kDa.

For research use only. We do not sell to patients.

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Description

PD-L1 protein serves as a ligand for the inhibitory receptor PDCD1/PD-1 and is critical for maintaining immune tolerance. This interaction modulates T cell activation, limits effector responses and may stimulate IL10-producing T cell subsets. PD-L1 Protein, Mouse (220a.a, HEK293, Fc) is the recombinant mouse-derived PD-L1 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of PD-L1 Protein, Mouse (220a.a, HEK293, Fc) is 220 a.a., with molecular weight of 66-90 kDa.

Background

PD-L1 protein plays a crucial role in maintaining immune tolerance to self by acting as a ligand for the inhibitory receptor PDCD1/PD-1. This interaction modulates the activation threshold of T-cells, limiting their effector response and potentially stimulating T-cell subsets that produce interleukin-10 (IL10). However, tumors exploit the PDCD1-mediated inhibitory pathway to attenuate anti-tumor immunity and evade destruction by the immune system, thereby promoting tumor survival. The interaction between PD-L1 and PDCD1/PD-1 inhibits the function of cytotoxic T lymphocytes (CTLs), but blocking this pathway can reverse the exhausted T-cell phenotype and normalize the anti-tumor response, offering a promising strategy for cancer immunotherapy.

Biological Activity

Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.7284 μg/mL, corresponding to a specific activity is 1372.87 units/mg.

  • Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL‑2 mouse cytotoxic T cells. The ED50 this effect is 1.012 μg/mL, corresponding to a specific activity is 988.14 units/mg.
Species

Mouse

Source

HEK293

Tag

C-hFc

Accession

Q9EP73 (F19-T238)

Gene ID
Synonyms
Programmed cell death 1 ligand 1Cd274; programmed cell death 1 ligand 1; PD-L1; PDCD1 ligand 1; programmed death ligand 1; B7 homolog 1; B7-H1; CD274;
AA Sequence

FTITAPKDLYVVEYGSNVTMECRFPVERELDLLALVVYWEKEDEQVIQFVAGEEDLKPQHSNFRGRASLPKDQLLKGNAALQITDVKLQDAGVYCCIISYGGADYKRITLKVNAPYRKINQRISVDPATSEHELICQAEGYPEAEVIWTNSDHQPVSGKRSVTTSRTEGMLLNVTSSLRVNATANDVFYCTFWRSQPGQNHTAELIIPELPATHPPQNRT

Molecular Weight

66-90 kDa

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, 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. 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.

Documentation
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

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

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

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

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

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

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Product Name:
PD-L1 Protein, Mouse (220a.a, HEK293, Fc)
Cat. No.:
HY-P70633
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