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NeoBiotechnologies
Antibody is stable for 24 months.
Positive Control: Human thymus. Jurkat cells. Cellular Localization: Nucleus
Specificity Comments: Terminal deoxynucleotidyl transferase (TdT) is an unusual deoxynucleotide polymerizing enzyme with a molecular weight of about 58 kDa found normally only in B- and T-cell lymphoblasts/prelymphocytes. TdT generates antigen receptor diversity by synthesizing non-germ line elements (N-regions) at the junctions of rearranged Ig heavy chain and T cell receptor gene segments. Rare TdT-positive cells are regularly detected in thymus and bone marrow. Typically, TdT expression in the thymus is very variable from cell to cell since it is rapidly decreased in more mature T-cells. TdT-positive cells may occasionally be found in tonsils, lymph nodes and extranodal lymphoid tissue. Immunohistochemical detection of TdT has value in classification of malignant lymphomas and acute leukemias, particularly for the identification of pre-B and pre-T acute lymphoblastic leukemia/lymphoblastic lymphoma (ALL/LBL).
Terminal Deoxynucleotidyl Transferase (TdT) is a DNA polymerase located in the cell nucleus which catalyses the polymerization of deoxynucleotides at the 3' hydroxyl ends of oligo or polydeoxynucleotide initiators and functions without a template. TdT is considered to be a highly specific marker for the diagnosis and classification of acute lymphoblastic lymphoma/leuksemias. The determination of TdT expression is most valuable when it is different to differentiate histologically between lymphoblastic lymphoma and Burkitt's lymphoma.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Deoxynucleotidyltransferase terminal; deoxynucleotidyltransferase, terminal; DNA nucleotidylexotransferase; Nucleosidetriphosphate DNA Deoxynucleotidylexotransferase; nucleosidetriphosphate:DNA deoxynucleotidylexotransferase; Terminal addition enzyme; Terminal deoxynucleotidyltransferase; terminal deoxyribonucleotidyltransferase; Terminal transferase
Gene Aliases: DNTT; TDT
UniProt ID: (Human) P04053
Entrez Gene ID: (Human) 1791
Molecular Function:
DNA-directed DNA polymerase
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