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Immune checkpoint proteins

Immune checkpoints tune T cell activation and inhibition. This section lists recombinant proteins related to PD-1/PD-L1, CTLA-4, LAG-3, TIGIT and more—for binding assays, functional studies and antibody discovery.

01Highlights

High purity & low endotoxin
Multiple species & tag formats
For SPR/BLI, co-culture and reporter assays

02Applications

Checkpoint antibody screening
Tumor immunity research
Combination & resistance studies

Related hubs

Immuno-oncology hub PD-1 target Protocols

Catalog

Immune checkpoint proteins (82)

Catalog #	Product / Synonym	Species	Expression
PR167201	Human B7-H3/CD276 Protein B7H3; B7-H3; CD276; PSEC0249; UNQ309; PRO352; B7 homolog 3; CD276	Human	Recombinant Human B7-H3/CD276 Protein is expressed from HEK293 with hFc (IgG1) tag at the C-Terminus.It contains Leu29-Pro245 [Accession \| Q5ZPR3-2].
PR167101	Human B7-H3/CD276 Protein B7H3; B7-H3; CD276; PSEC0249; UNQ309; PRO352; B7 homolog 3; CD276	Human	Recombinant Human B7-H3/CD276 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Leu29-Pro245 [Accession \| Q5ZPR3-2].