. 2008 Dec 15;37(3):793–803. doi: 10.1093/nar/gkn985

Table 1.

CpG characteristics of test sequences

Sequence	Length	CpG number	CpG density^a	Closely spaced CpGs^b
ICR	2.4	73	30.0	23
CpG-Shift1	2.4	73	30.0	10
CpG-Shift2	2.4	73	30.0	1
pBS	1.1	73	66.4	28
Lambda	2.3	66	28.7	15
Igf2 DMR2	2.9	117	40.3	34
H19 promoter	0.74	28	38.0	7

^aNumber of CpGs per 1 kb.

^bNumber of CpGs separated by 5 bp or less.