1. Recombinant Proteins
  2. Immune Checkpoint Proteins
  3. Stimulatory Immune Checkpoint Molecules

Stimulatory Immune Checkpoint Molecules

As opposed to inhibitory pathways that attenuate the immune system, co-stimulatory molecules augment immunological responses against malignant cells. Malignant cells often inhibit co-stimulatory pathways to promote tumor genesis. As stimulatory checkpoint molecules, such as OX40, GITR, ICOS, 4-1BB and CD40, play key roles in regulating the effector functions of T cells, activating co-stimulatory pathways may improve checkpoint inhibition efficacy, and lead to durable antitumor responses.

Cat. No. Product Name / Synonyms Species Source Image
  • HY-P70808
    CD40L/CD154/TRAP Protein, Mouse (HEK293, His)

    CD40 Ligand; CD40LG; HIGM1; T-B cell-activating molecule; T-BAM; TNFSF5; tumor necrosis factor (ligand) superfamily member 5; Tumor necrosis factor ligand superfamily member 5

    Mouse HEK293
    CD40L (CD154; TRAP) is a ligand to CD40/TNFRSF5, acts function by generating a costimulatory signal that up-regulates IL-4 synthesis. CD40L is specifically expressed on activated CD4+ T-lymphocytes and involves in activation of NF-κB/MAPK pathway. CD40L also involves in B cell differentiation, maturation, and apoptosis. CD40L in mouse, cleaved into 2 chains of membrane form (1-260 a.a.) and soluble form (112-260 a.a.) which serves as a ligand for integrins (ITGA5:ITGB1 and ITGAV:ITGB3). CD40L/CD154/TRAP Protein, Mouse (HEK293, His) has a total length of 149 amino acids (M112-L260), is expressed in HEK392 cells with N-terminal 6*His-tag.
  • HY-P70807
    PVR/CD155 Protein, Human (HEK293, His)

    Poliovirus Receptor; Nectin-Like Protein 5; NECL-5; CD155; PVR; PVS

    Human HEK293
    PVR/CD155 Protein, Human (HEK293, His) is a recombinant Human PVR expressed in HEK 293 cells with a His tag at the N-terminus. PVR, Human plays a role in cancer cell invasion and migration.
    (1)
  • HY-P72022
    SLAMF2/CD48 Protein, Human (HEK293, hFc)

    B-lymphocyte activation marker BLAST-1 BCM1 surface antigen; Leukocyte antigen MEM-102; SLAM family member 2; SLAMF2; Signaling lymphocytic activation molecule 2; TCT.1; CD48; BCM1; BLAST1;

    Human HEK293
    SLAMF2/CD48 protein is a GPI-anchored glycoprotein that regulates immune cell function by interacting with CD2 and CD244. SLAMF2/CD48 Protein, Human (HEK293, hFc) is the recombinant human-derived SLAMF2/CD48 protein, expressed by HEK293 , with C-hFc labeled tag.
    (1)
  • HY-P70651
    B7-1/CD80 Protein, Human (HEK293, His)

    CD80; Activation B7-1 antigen; B7; BB1; CD28LG1; CD28LGB7-1 antigen; T-lymphocyte activation antigen CD80

    Human HEK293
    The CD80 protein plays a key role in T lymphocyte activation, promoting proliferation and cytokine production through CD28 binding. In contrast, interaction with CTLA-4 inhibits T cell activation. B7-1/CD80 Protein, Human (HEK293, His) is the recombinant human-derived B7-1/CD80 protein, expressed by HEK293 , with C-6*His labeled tag.
    (3)
  • HY-P72028
    CD40L/CD154/TRAP Protein, Human (HEK293, hFc-Flag)

    CD40-L; T-cell antigen Gp39; NF-related activation protein; TRAP; Tumor necrosis factor ligand superfamily member 5; CD154; sCD40L

    Human HEK293
    CD40L (CD154; TRAP) is a ligand to CD40/TNFRSF5, acts function by generating a costimulatory signal that up-regulates IL-4 synthesis. CD40L is specifically expressed on activated CD4+ T-lymphocytes and involves in activation of NF-κB/MAPK pathway. CD40L also involves in B cell differentiation, maturation, and apoptosis. CD40L in human, cleaved into 2 chains of membrane form (1-261 a.a.) and soluble form (113-261 a.a.) which serves as a ligand for integrins (ITGA5:ITGB1 and ITGAV:ITGB3). CD40L/CD154/TRAP Protein, Human (HEK293, hFc-Flag) has a total length of 248 amino acids (M13-L261), is expressed in HEK392 cells with N-terminal hFc- and Flag-tag.
    (2)
  • HY-P72353
    CD28 Protein, Human/Cynomolgus/Rhesus Macaque (Biotinylated, HEK293, Fc-Avi)

    CD28; CD28 antigen; CD28 molecule; T-cell-specific surface glycoprotein CD28; Tp44; TP44

    Rhesus Macaque; Human; Cynomolgus HEK293
    The CD28 protein is critical for T cell activation, enhancing proliferation, cytokine production, and survival. When linked to TCR/CD3 and CD40L, CD28 promotes the production of IL4 and IL10, thereby regulating immune responses. CD28 Protein, Human/Cynomolgus/Rhesus Macaque (Biotinylated, HEK293, Fc-Avi) is the recombinant human, cynomolgus-derived CD28 protein, expressed by HEK293 , with C-Avi, C-hFc labeled tag.
  • HY-P72839
    B7-H6 Protein, Human (HEK293, Fc)

    Natural cytotoxicity triggering receptor 3 ligand 1; B7-H6; NCR3LG1

    Human HEK293
    B7-H6, a distinctive monomeric protein, uniquely triggers NCR3-dependent natural killer (NK) cell activation, specifically interacting with NCR3 while avoiding engagement with other NK cell-activating receptors (NCR1, NCR2, and KLRK1). This specificity underscores B7-H6's unique role in initiating NK cell responses through the NCR3 pathway within the intricate network of NK cell activation mechanisms. B7-H6 Protein, Human (HEK293, Fc) is the recombinant human-derived B7-H6 protein, expressed by HEK293 , with C-hFc labeled tag.
    (1)
  • HY-P72887
    CD200 Protein, Human (HEK293, Fc)

    OX-2 membrane glycoprotein; CD200; MOX1; MOX2; My033

    Human HEK293
    CD200 Protein stimulates T-cell proliferation and regulates myeloid cell activity in tissues. It interacts with CD200R1 through their Ig-like domains, indicating its role in immune response modulation and maintaining cellular homeostasis. CD200 Protein, Human (HEK293, Fc) is the recombinant human-derived CD200 protein, expressed by HEK293 , with C-hFc labeled tag.
  • HY-P72889
    CD200 Protein, Mouse (HEK293, His)

    OX-2 membrane glycoprotein; CD200; MOX1; MOX2; My033

    Mouse HEK293
    CD200 protein functions as a costimulator of T-cell proliferation and is implicated in the potential regulation of myeloid cell activity across various tissues.Through their N-terminal Ig-like domains, CD200 interacts with CD200R1, establishing a molecular interaction that likely contributes to the modulation of immune responses and cellular activities.CD200 Protein, Mouse (HEK293, His) is the recombinant mouse-derived CD200 protein, expressed by HEK293 , with C-His labeled tag.
    (1)
  • HY-P72907
    CD40L/CD154/TRAP Protein, Human (His)

    CD40 ligand; CD40-L; TRAP; CD154; sCD40L; TNFSF5

    Human E. coli
    CD40L (CD154; TRAP) is a ligand to CD40/TNFRSF5, acts function by generating a costimulatory signal that up-regulates IL-4 synthesis. CD40L is specifically expressed on activated CD4+ T-lymphocytes and involves in activation of NF-κB/MAPK pathway. CD40L also involves in B cell differentiation, maturation, and apoptosis. CD40L in human, cleaved into 2 chains of membrane form (1-261 a.a.) and soluble form (113-261 a.a.) which serves as a ligand for integrins (ITGA5:ITGB1 and ITGAV:ITGB3). CD40L/CD154/TRAP Protein, Human (His) has a total length of 144 amino acids (E108-L261), is expressed in E. coli cells with C-terminal His-tag.
    (1)
  • HY-P7317
    4-1BB/TNFRSF9 Protein, Human (CHO, Fc)

    rHu4-1BB, Fc Chimera; CD137; ILA

    Human CHO
    4-1BB (CD137; TNFRSF9), a receptor of TNFSF9/4-1BBL, belongs to the tumor necrosis factor (TNF) receptor superfamily. 4-1BB is helpful for T cell activation and development, and also induces peripheral mononuclear cell proliferation and migration to the tumor microenvironment. 4-1BB is also involved in enhancing Nrf2 and NF-κB pathway mediated apoptosis of endothelial cells. Human 4-1BB protein is a surface glycoprotein with a transmembrane domain (187-213 a.a.). 4-1BB/TNFRSF9 Protein, Human (CHO, Fc) is the extracellular part (L24-Q186) of 4-1BB protein, produced by HEK293 cells with C-terminal hFc-tag.
  • HY-P7321
    B7-1/CD80 Protein, Human (HEK293, Fc)

    rHuB7-1/CD80, Fc Chimera; BB1; CD28LG; CD28LG1; LAB7

    Human HEK293
    B7-1/CD80 Protein, Human (HEK293, Fc) is a polypeptide chain with the C-termimal human IgG1 Fc fragment produced in HEK293 cells. CD80 is a costimulatory molecule known for its role in T-cell activation and also in regulating normal and malignant B cellsactivity.
    (1)
  • HY-P7324
    B7-H2/ICOSLG Protein, Human (HEK293, Fc)

    rHuB7-H2/ICOSLG, Fc Chimera; B7 homolog 2; B7RP-1; CD275

    Human HEK293
    B7-H2/ICOSLG Protein, Human (HEK293, Fc) is a polypeptide chain containing the C-termimal human IgG1 Fc fragment produced in HEK293 cells. ICOSLG is a number of the B7 family of co-stimulatory molecules.
    (1)
  • HY-P7325
    B7-H2/ICOSLG Protein, Human (HEK293, His)

    rHuB7-H2/ICOSLG, His; B7 homolog 2; B7RP-1; CD275

    Human HEK293
    B7-H2/ICOSLG Protein, Human (HEK293, His) is a polypeptide chain containing the C-termimal His tag produced in HEK293 cells. ICOSLG is a number of the B7 family of co-stimulatory molecules.
  • HY-P73307
    Nectin-2/CD112 Protein, Human (HEK293)

    Nectin-2; CD112; NECTIN2; PVRL2; HVEB; PRR2

    Human HEK293
    Nectin-2/CD112 protein has dual roles in T-cell signaling: as a costimulator with CD226, promoting proliferation and cytokine production, and as a coinhibitor with PVRIG, inhibiting proliferation. It also acts as a cell adhesion protein and a receptor for certain viruses. Nectin-2/CD112 Protein, Human (HEK293) is the recombinant human-derived Nectin-2/CD112 protein, expressed by HEK293 , with tag free.
    (2)
  • HY-P75614
    PVR/CD155 Protein, Human (HEK293)

    Poliovirus receptor; Nectin-like protein 5; NECL-5; CD155; PVR; PVS

    Human HEK293
    The PVR/CD155 protein plays a key role in initiating natural killer (NK) cell effector functions by binding to CD96, CD226 and TIGIT receptors. These interactions form mature immune synapses that trigger adhesion, lytic granule secretion, interferon-γ (IFN-γ), and cytotoxicity of activated NK cells. PVR/CD155 Protein, Human (HEK293) is the recombinant human-derived PVR/CD155 protein, expressed by HEK293 , with tag free.
    (2)
  • HY-P75625
    CD200R1 Protein, Mouse (HEK293, His)

    Cell surface glycoprotein CD200 receptor 1; CD200R; CRTR2; MOX2R; OX2R

    Mouse HEK293
    CD200R1 protein inhibits inflammatory responses by binding to CD200/OX2 cell surface glycoprotein and suppressing pro-inflammatory molecule expression. CD200R1 interacts with CD200 through their N-terminal Ig-like domains, providing a molecular mechanism for its role in regulating inflammation. CD200R1 Protein, Mouse (HEK293, His) is the recombinant mouse-derived CD200R1 protein, expressed by HEK293 , with C-6*His labeled tag.
    (1)
  • HY-P7631
    B7-H6 Protein, Human (HEK293, His)

    rHuB7-H6, His; B7 homolog 6; B7-H6; NCR3LG1; Natural cytotoxicity triggering receptor 3 ligand 1

    Human HEK293
    B7-H6 Protein, Human (HEK293, His) suppresses the initiation of the “caspase cascade” and induces anti-apoptosis by STAT3 pathway activation to provoke tumorigenesis.
  • HY-P77599
    CD200R1 Protein, Human (HEK293, Fc)

    CD200R; CRTR2; MOX2R; OX2R; CD200 R1; CD200 receptor 1; HCRTR2; MOX2 receptor

    Human HEK293
    CD200R1 protein is an inhibitory receptor that regulates key interactions by binding to the CD200/OX2 glycoprotein, thereby limiting inflammation by inhibiting TNF-α, interferons, and iNOS. CD200R1 Protein, Human (HEK293, Fc) is the recombinant human-derived CD200R1 protein, expressed by HEK293 , with C-hFc labeled tag.
  • HY-P77601
    CD200R1 Protein, Human (Biotinylated, HEK293, His-Avi)

    CD200R; CRTR2; MOX2R; OX2R; CD200 R1; CD200 receptor 1; HCRTR2; MOX2 receptor

    Human HEK293
    CD200R1 protein is an inhibitory receptor that regulates key interactions by binding to the CD200/OX2 glycoprotein, thereby limiting inflammation by inhibiting TNF-α, interferons, and iNOS. CD200R1 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived CD200R1 protein, expressed by HEK293 , with C-Avi, C-His labeled tag.
Cat. No. Product Name Effect Purity