From: MethylToSNP: identifying SNPs in Illumina DNA methylation array data
Subject
Methylation beta-value at cg00117311
Putative alleles
Allele frequencies at rs78210031
KB1
0.458
CT
0.5 C/0.5 T
TK1
0.542
NB1
0.954
CC
C
MD8
0.949