Fig. 1From: Association of epigenetics of the PDK4 gene in skeletal muscle and peripheral blood with exercise therapy following artificial knee arthroplastyThe CpG island region of the PDK4 gene. The circled C represents cytosine reacted with bisulfite. The circled C is defined as CpG1, CpG2, CpG3, and CpG4, in that order. A is the transcription initiation codon. ATG is the translation initiation codon. The underlined portion is the promoter region of the PDK4 geneBack to article page