DNA Nucleotidylexotransferase

**Definition:** A non-template-directed DNA polymerase normally found in vertebrate thymus and bone marrow. It catalyzes the elongation of oligo- or polydeoxynucleotide chains and is widely used as a tool in the differential diagnosis of acute leukemias in man. EC 2.7.7.31.

**Tree numbers:** - D08.811.913.696.445.308.325

**Synonyms:** - Terminal Addition Enzyme - Terminal Deoxynucleotidyl Transferase - Terminal Deoxyribonucleotidyl Transferase - Deoxynucleotidyltransferase - Desoxynucleotidyltransferase - Terminal Deoxyribonucleotidyltransferase - Deoxynucleotidyl Transferase - Desoxynucleotidyl Transferase