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. Author manuscript; available in PMC: 2009 Jan 1.
Published in final edited form as: Anal Biochem. 2007 Sep 1;372(1):21–31. doi: 10.1016/j.ab.2007.08.034

Figure 1. DNA-uracil concentrations in cultured, “folate-sufficient” lymphocytes are higher than those in lymphocytes freshly harvested from healthy humans.

Figure 1

Typical chromatograms produced using the Uracil assay V2 using 50 pg of internal standard (“343”) and the following amounts of sample DNA: (A) 3 μg of DNA from human lymphocytes grown in tissue culture with 12 nM folic acid; (B) 3 μg of DNA from lymphocytes grown in 30 nM folic acid; (C) 10 μg of DNA from freshly collected healthy human lymphocytes