PD-L1 Protein, Mouse (HEK293, Fc)
Based on 1 Customer Validation
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 (HEK293, Fc) is the recombinant mouse-derived PD-L1 protein, expressed by HEK293 , with C-hFc labeled tag.
- Species: Mouse
- Source: HEK293
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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
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 (HEK293, Fc) is the recombinant mouse-derived PD-L1 protein, expressed by HEK293 , with C-hFc labeled tag.
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.
Verified Bioactivity
1.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.
2.Measured by its binding ability in a functional ELISA.Immobilized PD1-His at 2 μg/mL (100 μL/well) can bind PD-L1 Protein, Mouse (HEK293, Fc), the EC50 is 200-750 ng/mL, the EC50 is ≤530 ng/mL.
MCE Validation Data
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Purity - SDS-PAGE
Purity - SDS-PAGE
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Bioactivity - Cell-Based Assay
Bioactivity - Cell-Based Assay
Technical Parameters
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Species Mouse
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Source HEK293
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Tag C-hFc
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Accession
Q9EP73 (F19-T238)
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Molecular Construction
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N-term
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PD-L1 (F19-T238)
Accession # Q9EP73 -
hFc
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C-term
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Protein Length
Extracellular Domain
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Synonyms
CD274; B7 Homolog 1; Prev. PDCD1LG1; B7-H; PD-L1; PDCD1 Ligand 1; B7H1; PDCD1L1; PDL1; HPD-L1; Programmed Cell Death 1 Ligand 1; Programmed Death Ligand 1; CD274 Antigen; ADMIO5; CD274 Molecule; B7-H1
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AA Sequence
FTITAPKDLYVVEYGSNVTMECRFPVERELDLLALVVYWEKEDEQVIQFVAGEEDLKPQHSNFRGRASLPKDQLLKGNAALQITDVKLQDAGVYCCIISYGGADYKRITLKVNAPYRKINQRISVDPATSEHELICQAEGYPEAEVIWTNSDHQPVSGKRSVTTSRTEGMLLNVTSSLRVNATANDVFYCTFWRSQPGQNHTAELIIPELPATHPPQNRT
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Molecular Weight
Approximately 60-90 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.
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Glycosylation
Yes
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder
Lyophilized from a 0.22 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.
<1 EU/μg, determined by LAL method.
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).
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.
Room temperature in continental US; may vary elsewhere.
Documentation
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Data Sheet (237 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)