97C5 recognizes human CD10, the human common acute lymphoblastic leukemia antigen. CD10 is a 100 kDa cell surface molecule identical to human membrane-associated neutral endopeptidase and also known as neprilysin or enkephalinase. Human CD10 is expressed on a wide variety of normal and neoplastic cell types from different tissues including neural and hematopoietic cells. It is expressed on pre and pro B cells and is involved in B cell development and differentiation. The antigen is also present on mature neutrophils, T cell precursors, and some T cell leukemias or lymphomas. Furthermore, CD10 is expressed on neoplastic cells of several B lymphoid leukemias or lymphomas.

AC104.3E3 recognizes the human CD33 antigen, a 67 kDa glycoprotein belonging to the sialoadhesin superfamily. The CD33 antigen is highly expressed on human monocytes but weakly on granulocytes and some - but not all - myeloid dendritic cells. The CD33 antigen is also found on myeloid progenitor cells (CFU-GEMM, CFU GM, CFU-G, BFU-E) but is not expressed on lymphocytes, platelets, erythrocytes, or primitive hematopoietic stem cells.

IB6 recognizes the human CD38 antigen, a single-chain type II transmembrane glycoprotein with enzymatic activity. It is present on the majority of hematopoietic cells, prevalent during early differentiation and activation processes. Terminally differentiated B cells (plasma cells) express CD38 brightly. Furthermore, CD38 is constitutively expressed in several tissues, for example brain, muscle, and kidney.

T6D11 recognizes the human CD45RA antigen which is expressed on naive CD4+ and CD8+ T cells as well as on CD8+ effector T cells. CD45RA is also present on subsets of B and NK cells as well as on plasmacytoid dendritic cells. The CD45RA antibody recognizes the 220 kDa isoform of the leukocyte common antigen (LCA), a transmembrane tyrosine phosphatase.

REA103 recognizes human CD185, which is a 42 kDa G-protein-coupled chemokine receptor and is also known as CXCR5, monocyte-derived receptor 15 (MDR15), or Burkitt lymphoma receptor-1 (BLR1). BLR-1 was originally identified on cells of Burkitt lymphoma and B cells. B cell attracting chemokine 1 (BCA-1), also known as B-lymphocyte chemoattractant (BLC) or CXCL13, is the ligand of CD185. It is further expressed on central memory CD4 T cells, T follicular helper cells, and on a migratory population of skin-derived dendritic cells. Additional information: Clone REA103 displays negligible binding to Fc receptors.

BW242/412 recognizes the human alpha/beta T cell receptor (TCR). The T cell receptor (TCR) is a heterodimer composed of two transmembrane glycoprotein chains, alpha and beta. Both chains are members of the Ig superfamily and consist of a constant and a polymorphic variable region. The variable region of the TCRalpha/beta is involved in recognition of antigenic peptides presented by the MHC complex of antigen-presenting cells. The Anti-TCRalpha/beta antibody, BW242/412, recognizes a common determinant of the TCRalpha/beta-CD3 complex.

BW264/56 is a monoclonal murine IgG2a antibody, which recognizes the human CD3 antigen present on mature human T cells, thymocytes, and a subset of NK cells. CD3 is associated with the T cell receptor (TCR) and is responsible for its signal transduction. The CD3 antigen is a complex of five invariable chains: gamma, delta, epsilon, zeta and eta. The epitope recognized by the antibody is located on the epsilon-chain of the CD3 complex.

The antibody VIT4 is a monoclonal murine IgG2a antibody, which recognizes the human CD4 antigen which is highly expressed on human T helper cells and thymocytes, and at lower levels on monocytes and dendritic cells. It is responsible for the recognition of the MHC Class II antigen.

BW135/80 recognizes the human CD8 antigen which is strongly expressed on human cytotoxic T cells and thymocytes, and is also expressed on a subset of NK cells. The CD8 antigen is a disulfide-linked dimer that exists either as a CD8 alpha homodimer or as a CD8 alpha/beta heterodimer. CD8 acts as a coreceptor for the T cell receptor and binds to the MHC Class I molecule. The CD8 antibody recognizes the alpha-subunit of the antigen.

LT20 recognizes the CD20 antigen, a non-glycosylated transmembrane protein of 33–37 kDa that is expressed on B lineage cells from the pre-B cell stage to the B cell lymphoblast stage. The antigen is further expressed on most malignant B cells. CD20 is not found on early B cell progenitors or plasma cells. Oligomers of CD20 form a Ca2+ channel and might function in the regulation of local responses during B cell activation.

M-T271 recognizes CD27, a member of the tumor necrosis factor receptor family. CD27 is expressed at differing levels on memory B cells, a fraction of plasma cells, and on naive and memory T cells, but is not expressed on naive B cells or effector T cells. It is also expressed on NK cells. CD27 therefore represents a useful marker to distinguish certain T and B cell subsets from each other.

M-T271 recognizes CD27, a member of the tumor necrosis factor receptor family. CD27 is expressed at differing levels on memory B cells, a fraction of plasma cells, and on naive and memory T cells, but is not expressed on naive B cells or effector T cells. It is also expressed on NK cells. CD27 therefore represents a useful marker to distinguish certain T and B cell subsets from each other.

5B1 recognizes the human CD45 antigen, a tyrosine phosphatase also known as the leukocyte common antigen (LCA). The CD45 molecule is required for T and B cell activation and is expressed in at least five isoforms depending on the differentiation status of the cell. The CD45 antibody recognizes a common epitope of all CD45 isoforms.

5B1 recognizes the human CD45 antigen, a tyrosine phosphatase also known as the leukocyte common antigen (LCA). The CD45 molecule is required for T and B cell activation and is expressed in at least five isoforms depending on the differentiation status of the cell. The CD45 antibody recognizes a common epitope of all CD45 isoforms.

REA196 recognizes the human CD56 antigen, a glycoprotein of the Ig-superfamily, also known as neural cell adhesion molecule (NCAM), which is expressed in blood on practically all resting and activated NK cells and on a minor subset of CD3+ T cells. CD56 is also expressed in brain (cerebellum and cortex) and at neuromuscular junctions. Certain large granular lymphocyte (LGL) leukemias, small-cell lung carcinomas, neuronal-derived tumors, myelomas, and myeloid leukemias also express CD56. Additional information: Clone REA196 displays negligible binding to Fc receptors.

A3C6E2 recognizes human CD117, also known as c-kit or SCF receptor. It is a 145 kDa receptor tyrosine kinase that is involved in stem cell signaling, activation, and proliferation. The CD117 antigen is expressed on about 1–3% of mononuclear cells from peripheral blood mononuclear cells (PBMCs) or cord blood, and on up to 10% of bone marrow cells. CD117 is further expressed on basophils, myeloid dendritic cells, TCRa/b+ T cells, CD19+ B cells, and CD56+ NK cells, as well as on mast cells, melanocytes, and AML (acute myeloid leukemia) blasts.

A3C6E2 recognizes human CD117, also known as c-kit or SCF receptor. It is a 145 kDa receptor tyrosine kinase that is involved in stem cell signaling, activation, and proliferation. The CD117 antigen is expressed on about 1–3% of mononuclear cells from peripheral blood mononuclear cells (PBMCs) or cord blood, and on up to 10% of bone marrow cells. CD117 is further expressed on basophils, myeloid dendritic cells, TCRa/b+ T cells, CD19+ B cells, and CD56+ NK cells, as well as on mast cells, melanocytes, and AML (acute myeloid leukemia) blasts.

97C5 recognizes human CD10, the human common acute lymphoblastic leukemia antigen (CALLA). CD10 is a 100 kDa cell surface molecule identical to human membrane-associated neutral endopeptidase (NEP) and also known as neprilysin or enkephalinase. Human CD10 is expressed on a wide variety of normal and neoplastic cell types from different tissues including neural and hematopoietic cells. It is expressed on pre– and pro–B cells and is involved in B cell development and differentiation. The antigen is also present on mature neutrophils, T cell precursors, and some T cell leukemias/lymphomas. Furthermore, CD10 is expressed on neoplastic cells of several B lymphoid leukemias/lymphomas.

M1/70.15.11.5 recognizes the human, mouse, and non-human primate CD11b antigen. CD11b, also known as Mac-1 alpha or integrin alphaM chain, is part of the CD11b/CD18 heterodimer (Mac-1 alpha, Mbeta2 integrin), also known as the C3 complement receptor. It functions as a receptor for complement (C3bi), fibrinogen, or clotting factor X. In humans, CD11b is strongly expressed on myeloid cells and weakly expressed on NK cells and some activated lymphocytes as well as on microglia in the brain. In mice, the CD11b antigen is expressed on monocytes/macrophages and microglia. To a lower extent it is expressed on granulocytes, NK cells, CD5+ B-1 cells, and subsets of dendritic cells.

REA263 recognizes the CD13 antigen, a 150–170 kDa type II transmembrane glycoprotein, which is also known as aminopeptidase N or gp150. CD13 is expressed on granulocytes, myeloid progenitors, endothelial cells, epithelial cells, and subset of granular lymphoid cells. It is also broadly expressed in other tissues such as kidney proximal tubules, intestine, and placenta. CD13 is an enzyme that is used as a biomarker to detect damage to the kidneys, and that may be used to help diagnose certain kidney disorders. It also serves as a receptor for one strain of human coronavirus that is an important cause of upper respiratory tract infections. Defects in CD13 appear to be a cause of various types of leukemia or lymphoma. Additional information: Clone REA263 displays negligible binding to Fc receptors.

VIMC6 recognizes the human CD15 antigen which is expressed on human myelomonocytic cells. It is present on neutrophils, eosinophils, and some monocytes, masked on basophils but not on lymphocytes. The antigen is also expressed on Hodgkin/Reed-Sternberg cells. The CD15 antibody recognizes the carbohydrate structure 3-fucosyl-N-acetyl-lactosamine. This structure is also known as stage specific embryonic antigen 1 (SSEA-1) and a common surface marker for pluripotency on mouse ES and iPS cells. On human cells in contrast, SSEA-1 is expressed only on early differentiating cells. The CD15 antibody recognizes the SSEA-1 antigen in both species. For applications in ES and iPS research, the dilution recommended in the data sheet may need adjustment.

Clone REA423 recognizes the human CD16 antigen, a single-pass type I membrane protein which is also known as low affinity immunoglobulin gamma Fc region receptor III (FcRIII). CD16 is a 50–80 kDa glycoprotein that is expressed in two different isoforms. The transmembrane form is found on human NK cells, macrophages, and mast cells, while the glycosylphosphatidylinositol (GPI)-linked form is present on neutrophils. The human CD16 antigen is a low-affinity receptor for aggregated IgG. The transmembrane form plays a role in signal transduction, NK cell activation, and antibody-dependent cellular cytotoxicity. Clone REA423 recognizes both the extracellular domain of the transmembrane form as well as the GPI-linked form of the human CD16 antigen. CD16 is expressed on the majority of rhesus monkey NK cells and on a subset of monocytes but not on granulocytes. Additional information: Clone REA423 displays negligible binding to Fc receptors.

HB5 recognizes CD21, a type I membrane glycoprotein. Expression of CD21 in humans is found on B cells, follicular dendritic cells, subsets of epithelial cells, and thymic T cells. The primary function attributed to CD21 has been to amplify the B cell receptor (BCR)-mediated signal transduction in response to antigen recognition. To enhance the BCR mediated activation, CD21 associates with CD19 and CD81 in a B cell–specific signal transduction complex, where interaction of BCR with CR2/CD19 amplifies the signals. In addition, CD21 serves as a receptor for split products of complement protein C3, the gp350/220 viral coat protein of the EBV and the immunoregulatory protein CD23.

FR10-11G9 recognizes human CD26, a costimulatory molecule that is involved in T cell activation. CD26 is a type II transmembrane protein that acts as an ectoenzyme with prolyl oligopeptidase activity. It is widely expressed in various tissues. In the immune system CD26 is expressed on thymocytes, activated T cells, B cells, NK cells, and macrophages.

AC104.3E3 recognizes the human CD33 antigen, a 67 kDa glycoprotein belonging to the sialoadhesin superfamily. The CD33 antigen is highly expressed on human monocytes but weakly on granulocytes and some – but not all – myeloid dendritic cells. The CD33 antigen is also found on myeloid progenitor cells (CFU-GEMM, CFU GM, CFU-G, BFU-E) but is not expressed on lymphocytes, platelets, erythrocytes, or primitive hematopoietic stem cells.

TB03 recognizes the human CD57. CD57, also known as HNK-1 or Leu-7, is an antigenic Oligosaccharide moiety detected on extracellular proteins of certain cell types. In blood, CD57 is found on 15-20% of mononuclear cells, including subsets of NK and T cells, though not on erythrocytes, monocytes, granulocytes, or platelets. Also, CD57 expression can be found on a variety of neural cell types. CD57 has been shown to be expressed on late stage effector CD8+ T cells. The frequency of CD57+ T lymphocytes is raised in a variety of diseases. CD57 expression is also increased on chronically activated CD8+ T cells in persistent viral infections, such as HIV.

145/15 recognizes the human CD62L antigen, a 74 kDa glycoprotein and a member of the selectin family of cell surface molecules. CD62L is also known as L-selectin, LECAM-1, or LAM-1 and binds a series of glycoproteins including CD34, GlyCAM-1, and MAdCAM-1. CD62L is important for homing of naive lymphocytes via endothelial venules to peripheral lymph nodes and Peyer’s patches. The CD62L antigen also contributes to the recruitment of leukocytes from the blood to areas of inflammation. Most hematopoietic cells express CD62L, including many peripheral blood B cells, T cells, monocytes, granulocytes, and some myeloid cells from bone marrow, and thymocytes. CD62L is continuously endoproteolytically cleaved from the cell surface neutrophils and lymphocytes (shedding). Proteolysis is accelerated, for example, after antigenic activation of T cells. Always use fresh material for immunofluorescent staining of CD62L+ cells. For optimal results, the cells should not be older than 8–12 hours. Keep cells continuously cold. CD62L-expression may be rapidly lost due to shedding.

LT2 recognizes the human CD2 antigen, a 50 kDa single-chain transmembrane glycoprotein also known as LFA-2 or receptor for sheep erythrocytes. CD2 belongs to the Ig superfamily and is involved in cell signaling and lymphocyte adhesion. The CD2 antibody reacts with 80–90 % of peripheral blood lymphocytes and more than 95 % of thymocytes. The antibody recognizes all T cells and a subset of NK cells.

LT2 recognizes the human CD2 antigen, a 50 kDa single-chain transmembrane glycoprotein also known as LFA-2 or receptor for sheep erythrocytes. CD2 belongs to the Ig superfamily and is involved in cell signaling and lymphocyte adhesion. The CD2 antibody reacts with 80–90 % of peripheral blood lymphocytes and more than 95 % of thymocytes. The antibody recognizes all T cells and a subset of NK cells.

4E3 recognizes the human CD25 antigen, a 55 kDa glycoprotein also known as the low-affinity interleukin-2 receptor alpha chain (IL-2Rα). CD25 is expressed on activated T and B cells, on macrophages, and on a subset of non-activated CD4+ regulatory T cells. The CD25 antigen contains three epitope regions called A, B, and C. This CD25 antibody recognizes epitope region B.

Clone REA209 recognizes CD42a, a 22 KDa transmembrane glycoprotein, which is also known as glycoprotein IX (GPIX). CD42a is a single-pass type I membrane protein with leucine rich motif containing a series of tandem repeats of a 24-amino acid sequence flanked by conserved disulfide loops, in its ligand binding domains. Expression of CD42a is found on platelets and megakaryocytes. CD42a, together with GPIb receptor complex and platelet glycoprotein V forms a complex which serves as the receptor for von Willebrand factor (VWF). The interaction of the GPIb-IX-V complex to VWF initiates initial platelet adhesion to vascular subendothelium after vascular injury, platelet activation, thrombosis, and hemostasis. Other known ligands for GPIb–IX–V include α-thrombin, clotting factors XI/XIIa, and high-molecular weight kininogen. Additional information: Clone REA209 displays negligible binding to Fc receptors.

REA185 recognizes human CD42b, a 145 kDa, single-pass type I membrane protein. Expression of CD42b is found on platelets and megakaryocytes. CD42b, the alpha chain, together with the beta chain (CD42c), forms the heterodimer, glycoprotein Ib (GP Ib). The GP Ib receptor complex further includes association of the alpha and beta subunits with platelet glycoprotein IX and glycoprotein V and this complex serves as the receptor for von Willebrand factor (VWF). The interaction of the GP Ib-IX-V complex to VWF initiates initial platelet adhesion to vascular subendothelium after vascular injury, platelet activation, thrombosis, and hemostasis. Other known ligands for GPIb–IX–V include α-thrombin, clotting factors XI/XIIa, and high-molecular weight kininogen. Additional information: Clone REA185 displays negligible binding to Fc receptors.

DB105 recognizes the CD44 antigen. CD44 is a marker for many types of cancer stem cells (CSC), including breast CSCs that possess higher tumorigenicity and metastatic potential, colorectal, pancreatic, and prostate CSCs. In addition, expression was observed in several cancers as well as on carcinoma cell lines. Here, CD44 plays a role in cancer cell migration and matrix adhesion in response to a cellular microenvironment, thus enhancing cellular aggregation and tumor cell growth. CD44 is also expressed on mesodermal cells, such as hematopoietic, fibroblastic, and glial cells.

REA113 recognizes CD94, an approximately 45 kDa, single pass, type II transmembrane protein, which belongs to C-type lectin superfamily. CD94 associates covalently with NKG2 family members and forms disulfide-bonded heterodimers. CD94-NKG2 receptors bind HLA-E, the non-classical MHC class Ib molecule. Depending on the associated NKG2 member, CD94-NKG2 heterodimer transmits either activating or inhibitory signal. For example, via immunoreceptor tyrosine–based inhibitory motifs (ITIMs) containing NKG2A, CD94-NKG2A heterodimers inhibit NK cell cytotoxicity. Besides NK cells, expression of CD94-NKG2 heterodimers is also shown on NK-T cells and a small percentage of CD8 cells in mice, where the crosslinking of CD94-NKG2 was shown to reduce the level of spontaneous apoptosis. Additional Information: Clone REA113 displays negligible binding to Fc receptors.

REA108 recognizes human CD197 which is a chemokine receptor with a C-C motif that mediates homing of T cells to secondary lymphoid organs via high endothelial venules (HEV) and is also known as CCR7. For example, naive T cells migrate very efficiently through lymph nodes using the adhesion molecules L-selectin, CD62L, and CCR7. Ligands for CCR7, e.g. CCL19, are expressed by the HEV of secondary lymphoid organs, by parenchymal cells within T cell zones of lymph nodes, and by endothelial cells at the openings of lymphatic vessels within peripheral tissues. Expression of CCR7 and the CD45RA isoform distinguishes three subsets of T cells: naive T cells (CCR7+CD45RA+), central memory T cells (CCR7+ CD45RA-), and effector memory T cells (CCR7- CD45RA-).

Clone FR3-16A11 recognizes CD203c, a glycosylated type II transmembrane molecule that belongs to the family of ecto-nucleotide pyrophosphatase/ phosphodiesterase (E-NPP3) enzymes. Among hematopoietic cells, expression of CD203c is restricted to basophils as well as to mast cells and their precursors, and has been described as specific for this lineage. Protein and/or mRNA expression of CD203c has also been found in solid tissues such as uterus or prostate. Basophils and mast cells are key producers of mediators that drive the onset of inflammatory responses, e.g., in allergy. Allergen challenge leads to a rapid up-regulation of activation markers such as CD203c or CD63. Due to its restricted expression pattern, CD203c is discussed as a specific marker to monitor the allergen-induced activation of basophils, e.g., in flow cytometric basophil activation tests of the peripheral blood.

VIT4 recognizes the human CD4 antigen which is highly expressed on human T helper cells and thymocytes, and at lower levels on monocytes and dendritic cells. It is responsible for the recognition of the MHC Class II antigen.

HB5 recognizes CD21, a type I membrane glycoprotein. Expression of CD21 in humans is found on B cells, follicular dendritic cells, subsets of epithelial cells, and thymic T cells. The primary function attributed to CD21 has been to amplify the B cell receptor (BCR)-mediated signal transduction in response to antigen recognition. To enhance the BCR mediated activation, CD21 associates with CD19 and CD81 in a B cell–specific signal transduction complex, where interaction of BCR with CR2/CD19 amplifies the signals. In addition, CD21 serves as a receptor for split products of complement protein C3, the gp350/220 viral coat protein of the EBV and the immunoregulatory protein CD23.

IB6 recognizes the human CD38 antigen, a single-chain type II transmembrane glycoprotein with enzymatic activity. It is present on the majority of hematopoietic cells, prevalent during early differentiation and activation processes. Terminally differentiated B cells (plasma cells) express CD38 brightly. Furthermore, CD38 is constitutively expressed in several tissues, for example brain, muscle, and kidney.

AC145 recognizes human CD123, also known as IL-3 receptor alpha-chain. It is the primary low-affinity subunit of the IL-3 receptor. CD123 associates with CD131, the common beta-chain of the IL-3, IL-5, and GM-CSF receptor, to form the high-affinity IL-3 receptor. The IL-3 receptor is involved in cell signaling for cell growth and differentiation. In peripheral blood, the CD123 antigen is expressed at high levels only on plasmacytoid dendritic cells and basophilic granulocytes but at low levels also on monocytes, eosinophilic granulocytes, myeloid dendritic cells, and subsets of hematopoietic progenitor cells.

LT19 recognizes the human CD19 antigen, a type-I transmembrane glycoprotein of 95 kDa that belongs to the immunoglobulin superfamily. CD19 is expressed on B cells throughout most stages of B cell differentiation, though its expression is down-regulated during their terminal differentiation to plasma cells. Expression of CD19 is also found in the majority of B cell–derived malignancies. CD19 is further present on follicular dendritic cells. On B cells, CD19 associates with CD21, CD81, and CD225 (Leu-13) forming a signal transduction complex.

Clone REA340 recognizes the human CD22 antigen, a single-pass type I membrane protein which is also known as sialic acid-binding Ig-like lectin 2 (Siglec-2). In peripheral blood, cell surface expression of CD22 is found on mature B cells, but is lost during terminal differentiation to plasma cells. In bone marrow, surface expression of CD22 can be detected from the pre–B cell stage on. Cytoplasmic expression of CD22 can also be found in late pro–B cells and early–B cells. CD22 plays a strong role in cell interactions and B cell activation. It is a regulatory molecule that prevents the overactivation of the immune system and the development of autoimmune diseases. CD22 has emerged as an ideal target for monoclonal antibody based therapy of B cell malignancies including most lymphomas and many leukemias. Additional information: Clone REA340 displays negligible binding to Fc receptors.

BW242/412 recognizes the human alpha/beta T cell receptor (TCR). The T cell receptor (TCR) is a heterodimer composed of two transmembrane glycoprotein chains, alpha and beta. Both chains are members of the Ig superfamily and consist of a constant and a polymorphic variable region. The variable region of the TCRa/b is involved in recognition of antigenic peptides presented by the MHC complex of antigen-presenting cells. The Anti-TCRa/b antibody, BW242/412, recognizes a common determinant of the TCRa/b-CD3 complex.

Clone REA340 recognizes the human CD22 antigen, a single-pass type I membrane protein which is also known as sialic acid-binding Ig-like lectin 2 (Siglec-2). In peripheral blood, cell surface expression of CD22 is found on mature B cells, but is lost during terminal differentiation to plasma cells. In bone marrow, surface expression of CD22 can be detected from the pre–B cell stage on. Cytoplasmic expression of CD22 can also be found in late pro–B cells and early–B cells. CD22 plays a strong role in cell interactions and B cell activation. It is a regulatory molecule that prevents the overactivation of the immune system and the development of autoimmune diseases. CD22 has emerged as an ideal target for monoclonal antibody based therapy of B cell malignancies including most lymphomas and many leukemias. Additional information: Clone REA340 displays negligible binding to Fc receptors.

REA196 recognizes the human CD56 antigen, a glycoprotein of the Ig-superfamily, also known as neural cell adhesion molecule (NCAM), which is expressed in blood on practically all resting and activated NK cells and on a minor subset of CD3+ T cells. CD56 is also expressed in brain (cerebellum and cortex) and at neuromuscular junctions. Certain large granular lymphocyte (LGL) leukemias, small-cell lung carcinomas, neuronal-derived tumors, myelomas, and myeloid leukemias also express CD56.Additional information: Clone REA196 displays negligible binding to Fc receptors.

Clone REA423 recognizes the human CD16 antigen, a single-pass type I membrane protein which is also known as low affinity immunoglobulin gamma Fc region receptor III (FcRIII). CD16 is a 50–80 kDa glycoprotein that is expressed in two different isoforms. The transmembrane form is found on human NK cells, macrophages, and mast cells, while the glycosylphosphatidylinositol (GPI)-linked form is present on neutrophils. The human CD16 antigen is a low-affinity receptor for aggregated IgG. The transmembrane form plays a role in signal transduction, NK cell activation, and antibody-dependent cellular cytotoxicity. Clone REA423 recognizes both the extracellular domain of the transmembrane form as well as the GPI-linked form of the human CD16 antigen. CD16 is expressed on the majority of rhesus monkey NK cells and on a subset of monocytes but not on granulocytes. Additional information: Clone REA423 displays negligible binding to Fc receptors.

BW264/56 recognizes the human CD3 antigen which is present on mature human T cells, thymocytes, and a subset of NK cells. CD3 is associated with the T cell receptor (TCR) and is responsible for its signal transduction. The CD3 antigen is a complex of five invariable chains: gamma, delta, epsilon, zeta, and eta. The epitope recognized by the antibody is located on the epsilon-chain of the CD3 complex.

BW264/56 recognizes the human CD3 antigen which is present on mature human T cells, thymocytes, and a subset of NK cells. CD3 is associated with the T cell receptor (TCR) and is responsible for its signal transduction. The CD3 antigen is a complex of five invariable chains: gamma, delta, epsilon, zeta, and eta. The epitope recognized by the antibody is located on the epsilon-chain of the CD3 complex.

BW264/56 recognizes the human CD3 antigen which is present on mature human T cells, thymocytes, and a subset of NK cells. CD3 is associated with the T cell receptor (TCR) and is responsible for its signal transduction. The CD3 antigen is a complex of five invariable chains: gamma, delta, epsilon, zeta, and eta. The epitope recognized by the antibody is located on the epsilon-chain of the CD3 complex.

VIMC6 recognizes the human CD15 antigen which is expressed on human myelomonocytic cells. It is present on neutrophils, eosinophils, and some monocytes, masked on basophils but not on lymphocytes. The antigen is also expressed on Hodgkin/Reed-Sternberg cells. The CD15 antibody recognizes the carbohydrate structure 3-fucosyl-N-acetyl-lactosamine. This structure is also known as stage specific embryonic antigen 1 (SSEA-1) and a common surface marker for pluripotency on mouse ES and iPS cells. On human cells in contrast, SSEA-1 is expressed only on early differentiating cells. The CD15 antibody recognizes the SSEA-1 antigen in both species. For applications in ES and iPS research, the dilution recommended in the data sheet may need adjustment.