TdT, Calf Thymus Terminal Deoxynucleotidyl Transferase Native TdT from calf thymus. Tdt is a DNA polymerase that catalyzes the addition of deoxynucleotides to the 3' hydroxy terminus of either double of single stranded DNA in a template-independent manner. 产品信息 Form Liquid Formulation 775 Units in 50 mM potassium phosphate buffer, 1 mM B-mercaptoethanol, 50% glycerol, pH 7.2. Preservative None Applications DNA Labeling Avoid freeze/thaw 是的 Unit definition One unit is the amount of enzyme required to transfer 1 nmol of dAMP from dATP to the 3′-OH terminus of d(A)50 in 60 min at 37°C. 商店和运输信息 Storage -20°C Ship Dry Ice Only Standard Handling