TdT Recombinant Antibody / DNA nucleotidylexotransferase

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).

P04053

Rabbit

A portion of amino acids 1-100 from the human protein was used as the immunogen for the DNA nucleotidylexotransferase antibody.

Monoclonal

IgG κ

Recombinant

IHC-P

Purified

0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide

Aliquot the DNA nucleotidylexotransferase antibody and store frozen at -20oC or colder. Avoid repeated freeze-thaw cycles.

This DNA nucleotidylexotransferase antibody is available for research use only.