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. Author manuscript; available in PMC: 2015 Jan 11.
Published in final edited form as: J Med Chem. 2010 Jul 22;53(14):5179–5185. doi: 10.1021/jm100139b

Table 4.

Binding Affinities of Histone 3 Peptides to WDR5

peptide formula IC50 ± SD (µM) Ki ± SD (µM)
H3-10mer H2N-ARTKQTARKS-NH2 70 ± 6 15.10 ± 1.30
Ac-H3-10mer Ac-ARTKQTARKS-NH2 0.006 ± 0.002 <0.001
H3-3mer H2N-ART-NH2 127 ± 12 27.30 ± 2.50
Ac-H3-3mer Ac-ART-NH2 0.08 ± 0.003 0.02 ± 0.001
H3-10mer-K4Me H2N-ARTK(Me)QTARKS-NH2 69 ± 7 15.00 ± 1.60
H3-10mer-K4Me2 H2N-ARTK(Me2)QTARKS-NH2 42 ± 6 9.00 ± 1.30
H3-10mer-K4Me3 H2N-ARTK(Me3)QTARKS-NH2 73 ± 6 15.60 ± 1.20