Table I Quantification of endogenous histone peptides
Peptide1, histone test
RT(min)AreaRatio
TKQTAR(H3 3–8)
    Unmod22.641.02E+090.80787
    K4me126.122.42E+080.19113
    K4me214.012.62E+050.00021
    K4me314.013.80E+040.00003
    K4ac20.259.69E+050.00077
KSTGGKAPR(H3 9–17)
    Unmod28.031.51E+090.20066
    K9me130.838.94E+080.11846
    K9me221.012.48E+090.32874
    K9me320.891.42E+090.18840
    K9ac26.442.68E+070.00356
    K14ac26.633.60E+080.04766
    K9me1K14ac29.442.21E+080.02934
    K9me2K14ac19.674.62E+080.06124
    K9me3K14ac19.581.53E+080.02030
    K9acK14ac24.751.25E+070.00166