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Kappa Light Chain [MD137R]
Description Each immunoglobulin molecule consists of two identical heavy chains and two identical light chains. There are two types of light chains designated as kappa and lambda. The gene rearrangement process that generates the immunoglobulin molecule results in either a productive kappa gene or a productive lambda gene. The mechanics of the rearrangement process normally produce approximately twice as many kappa-bearing cells as lambda. However this ratio loses during malignant transformation. The kappa light chain antibody labels kappa light chain expressing B lymphocytes and plasma cells. Other cells may also express kappa light chain due to nonspecific uptake of immunoglobulin. Individual B cells express either kappa or lambda light chains. Monoclonality is generally assumed to be evidence of a malignant proliferation. Paired with lambda, kappa light chain is useful in identifying monoclonality of lymphoid malignancies. (Shipping Cost: €200.00) Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
Kappa Light Chain [MD137R]
Description Each immunoglobulin molecule consists of two identical heavy chains and two identical light chains. There are two types of light chains designated as kappa and lambda. The gene rearrangement process that generates the immunoglobulin molecule results in either a productive kappa gene or a productive lambda gene. The mechanics of the rearrangement process normally produce approximately twice as many kappa-bearing cells as lambda. However this ratio loses during malignant transformation. The kappa light chain antibody labels kappa light chain expressing B lymphocytes and plasma cells. Other cells may also express kappa light chain due to nonspecific uptake of immunoglobulin. Individual B cells express either kappa or lambda light chains. Monoclonality is generally assumed to be evidence of a malignant proliferation. Paired with lambda, kappa light chain is useful in identifying monoclonality of lymphoid malignancies. (Shipping Cost: €200.00) Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
Ki67 [SP6]
Description The antibody labels Ki-67, a proliferation-associated nuclear protein expressed during all active phases of the cell cycle. Quantitative determination of the fraction of cells which stain positive for the Ki-67 nuclear antigen has been demonstrated to be a highly accurate way of assessing the fraction of proliferating cells within a given tissue. Estimation of the cell proliferation index in tumor cells is valuable as a prognostic indicator. (Shipping Cost: €200.00) Host Rabbit Application Immunocytochemistry (ICC),Immunofluorescence (IF), Immunohistochemistry (IHC), Western Blot (WB) Reactivity Human, Mouse, Rat, Common Marmoset -
Ki67 [SP6]
Description The antibody labels Ki-67, a proliferation-associated nuclear protein expressed during all active phases of the cell cycle. Quantitative determination of the fraction of cells which stain positive for the Ki-67 nuclear antigen has been demonstrated to be a highly accurate way of assessing the fraction of proliferating cells within a given tissue. Estimation of the cell proliferation index in tumor cells is valuable as a prognostic indicator. (Shipping Cost: €200.00) Host Rabbit Application Immunocytochemistry (ICC),Immunofluorescence (IF), Immunohistochemistry (IHC), Western Blot (WB) Reactivity Human, Mouse, Rat, Common Marmoset -
LAG3/CD223 [EPR4392(2)]
Description Lymphocyte activation gene-3 (LAG3), also known as CD223, is a protein expressed by activated CD4+ and CD8+ T cells. This protein binds to major histocompatibility complex (MHC) class II molecules with significantly higher affinity than CD4, and is associated with the T-cell receptor complex at the cell surface. It is hypothesized that LAG3 might act as an important negative competitor of CD4, to modulate T cell proliferation, function and homeostasis. Both MHC class II and LAG-3 are strongly upregulated in inflammatory responses. In tumor tissues, LAG3 has been detected in tumor infiltrating lymphocytes. Immunohistochemical analysis revealed LAG-3 expression was distributed on lymphocytes scattered in renal cell carcinoma, melanoma and lymphomas. They were also detected in the tumor stroma as well as in the peritumoral tissue. In melanoma, expression of MHC II has been associated with poor prognosis. Recently, a study demonstrated that LAG3 can prevent MHC II-positive melanoma cells f Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
Lambda Light Chain [MD138R]
Description Each immunoglobulin molecule consists of two identical heavy chains and two identical light chains. There are two types of light chains designated as kappa and lambda. The gene rearrangement process that generates the immunoglobulin molecule results in either a productive kappa or lambda gene. The lambda light chain antibody labels the lambda light chain that expresses normal and neoplastic B lymphocytes and plasma cells. Other cells may also express lambda light chain due to nonspecific uptake of immunoglobulin. Individual B cells express either kappa or lambda light chains. Monoclonality is generally assumed to be evidence of a malignant proliferation. The pairing of a kappa with a lambda light chain antibody is useful for identifying monoclonality of lymphoid malignancies. (Shipping Cost: €200.00) Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
Lambda Light Chain [MD138R]
Description Each immunoglobulin molecule consists of two identical heavy chains and two identical light chains. There are two types of light chains designated as kappa and lambda. The gene rearrangement process that generates the immunoglobulin molecule results in either a productive kappa or lambda gene. The lambda light chain antibody labels the lambda light chain that expresses normal and neoplastic B lymphocytes and plasma cells. Other cells may also express lambda light chain due to nonspecific uptake of immunoglobulin. Individual B cells express either kappa or lambda light chains. Monoclonality is generally assumed to be evidence of a malignant proliferation. The pairing of a kappa with a lambda light chain antibody is useful for identifying monoclonality of lymphoid malignancies. (Shipping Cost: €200.00) Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
LEF1/TCF1 Alpha [MD158R]
Description LEF1 or TCF1 alpha participates in the Wnt signaling pathway, activates transcription of target genes in the presence of CTNNB1 and EP300. It may play a role in hair cell differentiation and follicle morphogenesis. TLE1, TLE2, TLE3 and TLE4 repress transactivation mediated by LEF1 and CTNNB1. It regulates T-cell receptor alpha enhancer function. PIAG antagonizes both Wnt-dependent and Wnt-independent activation by LEF1. Isoform 3 lacks the CTNNB1 interaction domain and may be an antagonist for Wnt signaling. Isoform 5 transcriptionally activates the fibronectin promoter, binds to and represses transcription from the E-cadherin promoter in a CTNNB1-independent manner, and is involved in reducing cellular aggregation and increasing cell migration of pancreatic cancer cells. Isoform 1 transcriptionally activates MYC and CCND1 expression and enhances proliferation of pancreatic tumor cells. Detected in thymus but not detected in normal colon, but highly expressed in colon cancer biopsies a Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
LEF1/TCF1 Alpha [MD158R]
Description LEF1 or TCF1 alpha participates in the Wnt signaling pathway, activates transcription of target genes in the presence of CTNNB1 and EP300. It may play a role in hair cell differentiation and follicle morphogenesis. TLE1, TLE2, TLE3 and TLE4 repress transactivation mediated by LEF1 and CTNNB1. It regulates T-cell receptor alpha enhancer function. PIAG antagonizes both Wnt-dependent and Wnt-independent activation by LEF1. Isoform 3 lacks the CTNNB1 interaction domain and may be an antagonist for Wnt signaling. Isoform 5 transcriptionally activates the fibronectin promoter, binds to and represses transcription from the E-cadherin promoter in a CTNNB1-independent manner, and is involved in reducing cellular aggregation and increasing cell migration of pancreatic cancer cells. Isoform 1 transcriptionally activates MYC and CCND1 expression and enhances proliferation of pancreatic tumor cells. Detected in thymus but not detected in normal colon, but highly expressed in colon cancer biopsies a Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human -
LGR5/GPR49 [8G9]
Description Leucine-rich repeat containing G protein-coupled receptor 5 (LGR5) is a seven-transmembrane G-protein coupled receptor (GPR49). It belongs to the family of glycoprotein hormone receptor family. LGR5 is present in the endometrium layer. The LGR5 gene is located on human chromosome location 12q21.1. LGR5 binds to R-spondin and enhances the Wnt/ β-catenin pathway. It stimulates tumor progression and induces colorectal cancer development. Lgr5 acts as a potential stem cell marker in numerous adult tissues. It has pathological significance in various cancers, like breast, colon, stomach, liver and esophagus. Elevated expression of LGR5 is associated with breast, ovarian, colon and hepatocellular cancers. Breast cancer patients with high-grade ER- and high levels of LGR5 expression often die due to breast cancer. Most fatal cases of ductal carcinoma in situ (DCIS) were LGR5+. Some studies find that the LGR5 expression pattern can be used as a biomarker to identify patients that need thera Host Rabbit Application Immunohistochemistry (IHC) Reactivity Human