Calf Topoisomerase I from USB Corp.
Description:... Source: Calf thymus Description: Topoisomerase I relaxes both positively and negatively supercoiled DNA by a transient breakage and rejoining of phosphodiester bonds (1,2) . Relaxing supercoiled DNA with Topoisomerase I allows molecules to be differentiated by a single nucleotide pair by gel electrophoresis ...Tfi DNA Ligase, 2,000U, thermostable from Bioneer, Inc.
Description:... Tfi DNA Ligase catalyzes the formation of a phosphodiester bonds between adjacent 3-hydroxyl and 5-phosphate termini in nicked duplex DNA molecules or between oligonucleotides which are in duplex with a ...DNase I (RNase-free) (2 U/l) from Ambion
Description:... I (RNase-free) (E.C. 3.1.21.1) is a nonspecific endonuclease that degrades double-and single-stranded DNA and chromatin. It functions by hydrolyzing phosphodiester linkages, producing mono and oligonucleotides with a 5'-phosphate and a 3'-hydroxyl group. Ambion's RNase-free DNase I is of the highest purity ...