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. Author manuscript; available in PMC: 2012 Aug 22.
Published in final edited form as: ACS Chem Biol. 2010 Oct 14;5(12):1169–1182. doi: 10.1021/cb1001262

Table 2.

Structure-activity relationship for various cyclin D1 binding peptides

graphic file with name nihms393349t2.jpg
SEQUENCE IC50
CDK2/A2(µM)
Potency
ratio
IC50
CDK4/D1(µM)
Potency
ratio
SAKRRLFG 3.3 2.9
HAKRRLIF 1.3 1.5
RRLIpfF 26 20.0 250 166.7
HAKCitRLIF 18 13.8 21 14.0
HAKTRLIF 50 38.5 25 16.7
CitRLIF 164 126.2 179 119.3
SCCP10 25 19.2 8 5.3
SCCP 5624 >100 60 20.7
SAKRNLFGM 146
SAKRNLFG 75
SAKRALFGM 68
PAKRRLFG 8 6.7
PVKRRLFG 3 28
PVKRRL3CFG 1 3.2