Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Incorporation of tritium from [5,6-3H]uracil into dC and dT of DL1/pDL12 (thyX::Specr/thyA+ folA+), DL1/pDL14 (thyX::Specr/thyA+), and DL1/pRK415/DL1 (thyX). Elution positions of dC and dT separated by isocratic high-performance liquid chromatography are indicated by arrows. Peak areas were quantified using Laura Light software and were normalized using the total DNA quantity.
