Table III Quantification of 13C glucose labeled acetylated histone peptides
Peptidemz(+2)RT(min)1,10 min2,20 min3,1 hr4,2 hr5,24 hr
RatioRatioRatioRatioRatio
H3K9ac/K14ac
    12C528.29648.170.83490.71360.64710.46260.2945
    13C529.29948.170.16510.28640.35290.53740.7055
H3K9me1K14ac
    12C535.30451.170.87330.73740.62260.52130.3440
    13C536.30751.170.12670.26260.37740.47870.6560
H3K9me2K14ac
    12C514.29841.970.86680.74790.70660.55540.3809
    13C515.30241.970.13320.25210.29340.44460.6191
H3K9me3K14ac
    12C521.30641.820.87410.72940.81830.53260.3597
    13C522.30941.820.12590.27060.18170.46740.6403
H3K18ac/K23ac
    12C570.8458.680.87100.73890.66740.53510.3596
    13C571.84358.680.12900.26110.33260.46490.6404
H4 4–17 one-ac
    12C768.94656.410.88920.75230.67580.53590.4013
    13C769.94956.410.11080.24770.32420.46410.5987