2. Signaling Pathways
  3. Immunology/Inflammation
  4. CD3

CD3

Cluster of differentiation 3

CD3 (cluster of differentiation 3) is a protein complex and T cell co-receptor that is involved in activating both the cytotoxic T cell (CD8+ naive T cells) and T helper cells (CD4+ naive T cells). It is composed of four distinct chains. In mammals, the complex contains a CD3γ chain, a CD3δ chain, and two CD3ε chains. These chains associate with the T-cell receptor (TCR) and the CD3-zeta (ζ-chain) to generate an activation signal in T lymphocytes. The TCR, CD3-zeta, and the other CD3 molecules together constitute the TCR complex.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-P99776
    Plamotamab
    		Inhibitor 99.12%
    Plamotamab (XmAb-13676) is a human bispecific antibody (bsAb) that binds CD3 and CD20. Plamotamab recruits cytotoxic T cells to kill CD20+ expressing tumor cells. Plamotamab induces a mild hematologic reaction (MR), and results in tumor regression in vivo.
    Plamotamab
  • HY-P99948
    Etevritamab
    		Ligand
    Etevritamab (AMG-596) is a bispecific T-cell engager that targets EGFRvIII and CD3. Etevritamab simultaneously binds CD3 on T cells and EGFRvIII on glioblastoma multiforme cells, thereby forming a bridge structure. Etevritamab triggers T-cell activation, proliferation, secretion of cytotoxic substances, and tumor cell lysis. Etevritamab extends overall survival and induces tumor regression in mouse models of glioblastoma multiforme. Etevritamab can be used for research related to glioblastoma.
    Etevritamab
  • HY-P99916
    Emirodatamab
    		Inhibitor 99.05%
    Emirodatamab (AMG-427) is a bispecific T-cell engager (BiTE). Emirodatamab simultaneously binds FLT3 on the surface of acute myeloid leukemia (AML) cells and CD3 on the surface of T cells, thereby precisely recruiting immune effector cells to tumor sites. Emirodatamab potently induces T cell activation, secretion of proinflammatory cytokines (such as IFNγ, TNFα), and specific cytotoxicity, effectively lysing FLT3-positive tumor cells and inhibiting their growth. Emirodatamab not only significantly prolongs survival in mouse xenograft models and eliminates diseased cells in primates, but also exhibits a synergistic enhancement effect when combined with PD-1 blockade therapy. Emirodatamab is used in studies of acute myeloid leukemia, especially relapsed or refractory cases.
    Emirodatamab
  • HY-P991526
    M701
    		Inhibitor 99.05%
    M701 is a T-cell engager bispecific humanized antibody targeting epithelial cell adhesion molecule (EpCAM) and cluster of differentiation 3 (CD3). M701 binds to EpCAM on tumor cells and CD3 on T cells, thereby linking the two cell populations to achieve targeted cytotoxicity and T cell-mediated cytotoxicity. M701 is applicable to research related to advanced epithelial solid tumors.
    M701
  • HY-P991209
    Nebratamig
    		Inhibitor
    Nebratamig (GNC-035) is an anti-ROR1/anti-CD3/anti-PD-L1/anti-4-1BB tetra-specific antibody with potential immunostimulatory and antineoplastic activities.
    Nebratamig
  • HY-P990953
    Zubotamig
    		Inhibitor
    Zubotamig (Gen1047) is an CD3E/VTCN1-targeting Ig(G1 -κ_G1 -λ2) type chimeric human antibody. The recommed isotype control is Human IgG1 kappa, Isotype Control (HY-P99001). Zubotamig induces T-cell mediated cytotoxicity of B7H4-positive tumor cells, triggers T-cell activation, and induces cytokine release from T cells in the presence of B7H4-expressing tumor cells. Zubotamig demonstrates antitumor activity in mouse patient-derived xenograft (PDX) models. Zubotamig can be used for the research of solid cancers (including breast, ovarian and lung cancer).
    Zubotamig
  • HY-P99914
    Emfizatamab
    		Activator
    Emfizatamab (GNC-038) is a monoclonal antibody against CD19/CD3E/TNFRSF9/PD-L1. Emfizatamab exhibits antitumor activity, being capable of activating CD3 and 4-1BB signals on T cells, as well as targeting the high expression of CD19 or PD-L1 on tumor cells. Emfizatamab functions as a CD19-specific T cell engager by mediating direct antitumor activity. Emfizatamab can also overcome the inhibition of T cells by PD-L1. Emfizatamab can be used in the research of tumors such as R/R non-Hodgkin lymphoma or acute lymphoblastic leukemia.
    Emfizatamab
  • HY-P991706
    Nelvutamig
    		Inhibitor
    Nelvutamig is a humanized immunoglobulin (H-gamma1_L-kappa)_scFvkh-G1(h-CH2-CH3) antibody targeting ENPP3/CD203c and CD3E. The corresponding isotype control is: Human immunoglobulin (H-gamma1_L-kappa)_scFvkh-G1(h-CH2-CH3).
    Nelvutamig
  • HY-P99562
    Tidutamab
    Tidutamab (XmAb-18087) is a humanized and affinity-optimized bispecific antibody (bsAb) targeting SSTR2 binding domain and T-cell binding domain (CD3). Tidutamab possesses a full Fc domain to maintain long serum half-life.Tidutamab eliminates SSTR+ tumor cells by stimulating redirected T cellmediated cytotoxicity (RTcC).
    Tidutamab
  • HY-P991034
    Trevotamig
    		Inhibitor
    HY-P991034 is an EPCAM/CD3E-targeting H-γ1_L-κ-scFvhl dimer type bispecific antibody.
    Trevotamig
  • HY-P990272
    Anti-Mouse CD3ε Antibody (KT3)
    		Inhibitor
    Anti-Mouse CD3ε Antibody (KT3) is a rat-derived IgG2a type antibody inhibitor, targeting to mouse CD3ε. Anti-Mouse CD3ε Antibody (KT3) increases thymocytes proliferation. Anti-Mouse CD3ε Antibody (KT3) can be used for the research of immunology.
    Anti-Mouse CD3ε Antibody (KT3)
  • HY-P991479
    Amtabafusp alfa
    		Ligand 99%
    Amtabafusp alfa (GS-8588) is an envelope-targeting bispecific T-cell engager for HIV treatment. Amtabafusp alfa redirects effector T cells by binding to CD3 via a humanized anti-CD3 Fab domain and to HIV envelope proteins via an engineered CD4 domain 1 variant. Amtabafusp alfa exhibits potent, broad-spectrum activity against a variety of HIV isolates and specifically kills HIV-infected cells. Amtabafusp alfa can be used for research on HIV infection.
    Amtabafusp alfa
  • HY-19486
    UR-1505
    		Inhibitor 99.97%
    UR-1505 is a nuclear factor of activated T cells (NF-AT) inhibitor. UR-1505 can suppress CD3/CD28 induced T cell proliferation, increase p27KIP levels, and induce G1/S cell cycle arrest. UR-1505 can also inhibit the production of IL-5 and IFN-γ in activated T cells. UR-1505 has immunomodulatory properties and can be used in the study of atopic dermatitis.
    UR-1505
  • HY-P99837
    Dafsolimab
    Dafsolimab (SPV-T3a) is a Mouse IgG2b monoclonal antibody (anti-CD3). Dafsolimab can induce cell death through modulation and activation of the CD3/T cell receptor complex. Dafsolimab can be used for the research of graft-versus-host disease (GVHD).
    Dafsolimab
  • HY-P991842
    Anti-CD3 Antibody (UCHT-1)
    		Inhibitor
    Anti-CD3 Antibody (UCHT-1) reacts with human CD3ε. Anti-CD3 Antibody (UCHT-1) can be used for the study of graft-versus-host disease (GVHD). Recommend Isotype Controls: Mouse IgG1 kappa, Isotype Control (HY-P99977).
    Anti-CD3 Antibody (UCHT-1)
  • HY-P990714
    Obertamig
    		Inhibitor
    Obertamig is an engineered, humanized, anti-CD3E/HLA-G monoclonal antibody with humanized CH2-CH3 modifications and consists of half immunoglobulin IgG1 λ2 and a single-chain variable fragment (scFv).
    Obertamig
  • HY-P991122
    Besufetamig
    		Ligand 99.98%
    Besufetamig is a bispecific antibody targeting programmed cell death 1 (PD-1) and CD3ε chain. Besufetamig modulates the activity of immune cells, exerting immunosuppressive and antineoplastic activities. Besufetamig is promising for research of cancers.
    Besufetamig
  • HY-P991183
    SAR-442257
    		Inhibitor ≥99.0%
    SAR442257 is a humanized IgG4-S228P, kappa monoclonal antibody targeting CD38 and CD28 on multiple myeloma cells and co-stimulates CD3 and CD28 on T cells.
    SAR-442257
  • HY-P990955
    Ebribafusp alfa
    		Inhibitor
    HY-P990955 is an CD3E-targeting IgG4κ type chimeric antibody, the recommed isotype control is Human IgG4 (S228P) kappa, Isotype Control (HY-P99003).
    Ebribafusp alfa
  • HY-P991681
    Emaretamig
    		Inhibitor
    Emaretamig is a humanized IgG1κ monoclonal antibody inhibitor targeting CLDN18 and CD3E. Abdakibart can be used for cancers like gastric and pancreatic cancer research.
    Emaretamig
Cat. No. Product Name / Synonyms Application Reactivity