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
  • 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.
  • 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. The total length of SLAMF2/CD48 Protein, Human (HEK293, hFc) is 194 a.a., with molecular weight of ~66 kDa.
  • HY-P70651
    B7-1/CD80 Protein, Human (208a.a, 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 (208a.a, HEK293, His) is the recombinant human-derived B7-1/CD80 protein, expressed by HEK293 , with C-6*His labeled tag. The total length of B7-1/CD80 Protein, Human (208a.a, HEK293, His) is 208 a.a., with molecular weight of 38-60 kDa.
  • 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.
  • HY-P72353
    CD28 Protein, Human/Cynomolgus (Biotinylated, HEK293, Fc-Avi)

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

    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 (Biotinylated, HEK293, Fc-Avi) is the recombinant human, cynomolgus-derived CD28 protein, expressed by HEK293 , with C-Avi, C-hFc labeled tag. The total length of CD28 Protein, Human/Cynomolgus (Biotinylated, HEK293, Fc-Avi) is 134 a.a., with molecular weight of 60-90 kDa.
  • 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. The total length of B7-H6 Protein, Human (HEK293, Fc) is 262 a.a., with molecular weight of ~53.4 kDa.
  • 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. The total length of CD200 Protein, Mouse (HEK293, His) is 232 a.a., with molecular weight of ~24 kDa.
  • 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.
  • 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.
  • 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.
  • 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. The total length of Nectin-2/CD112 Protein, Human (HEK293) is 329 a.a., with molecular weight of 45-55 kDa.
  • 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 and CD226 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.
  • 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-His, C-6*His labeled tag. The total length of CD200R1 Protein, Mouse (HEK293, His) is 213 a.a., with molecular weight of 55-65 kDa.
  • 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
    Accession#Q8TD46-4 CD200R1 (A27-L266);C-hFc
  • HY-P77601
    CD200R1 Protein, Human (Biotinylated, HEK293, His-Avi)

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

    Human HEK293
    Accession#Q8TD46-4 CD200R1 (A27-L266);C-His-Avi
Cat. No. Product Name Effect Purity