High fidelity TNA synthesis by Therminator polymerase.
Therminator DNA polymerase is an efficient DNA-dependent TNA polymerase capable of polymerizing TNA oligomers of at least 80 nt in length. In order for Therminator to be useful for the in vitro selection of functional TNA sequences, its TNA synthesis fidelity must be high enough to preserve successful sequences. We used sequencing to examine the fidelity of Therminator-catalyzed TNA synthesis at different temperatures, incubation times, tNTP ratios and primer/template combinations. TNA synthesis by Therminator exhibits high fidelity under optimal conditions; the observed fidelity is sufficient to allow in vitro selection with TNA libraries of at least 200 nt in length.
Ichida
Justin K
JK
Howard Hughes Medical Institute, Massachusetts General Hospital, Boston, MA 02114, USA.
Horhota
Allen
A
Zou
Keyong
K
McLaughlin
Larry W
LW
Szostak
Jack W
JW
D004259:DNA-Directed DNA Polymerase / Q000378:metabolism*; D009696:Nucleic Acids / Q000096:biosynthesis* / Q000737:chemistry*; D009841:Oligonucleotides / Q000096:biosynthesis / Q000737:chemistry; D017422:Sequence Analysis, DNA; D013698:Templates, Genetic; D013780:Tetroses / Q000737:chemistry*
D009696:Nucleic Acids; D009841:Oligonucleotides; D013780:Tetroses; D004259:DNA-Directed DNA Polymerase; C073321:erythrose