title: Enzymatic synthesis of deoxyribo-oligonucleotides of defined sequence. Properties of the enzyme.
abstract: A modified purification is described for an enzyme, from Escherichiacoli B, which polymerizes deoxyribonucleoside-5' diphosphates. Under appropriate conditions, the enzyme will add a single deoxyribonucleotide residue to a deoxyribo-oligonucleotide primer. At all stages, the enzyme activity copurified with the activity which will polymerize adenosine-5' diphosphate (polynucleotide phosphorylase). Studies of heat stability, the effect of various temperatures of reaction and of disc gel electrophoresis failed to provide evidence that the two activities are separable.
mesh_terms: D001483:Base Sequence; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D002854:Chromatography, Paper; D004269:DNA, Bacterial / Q000096:biosynthesis*; D004355:Drug Stability; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology*; D006358:Hot Temperature; D007700:Kinetics; D011117:Polyribonucleotide Nucleotidyltransferase / Q000302:isolation & purification / Q000378:metabolism*
chemical_list: D004269:DNA, Bacterial; D011117:Polyribonucleotide Nucleotidyltransferase