Figure 1From: LINE-1 methylation status and its association with tetralogy of fallot in infants Long interspersed nucleotide element-1 (LINE-1). The sequence shown represents a 468 base pair fragment (positions -835–-386) in the 5′-UTR of LINE-1. Numbers 1–29 refer to locations of the CpG site within the LINE-1 elements tested, and the underlining highlights the CpG units that include more than one CpG site tested; TSS, transcription star sitesBack to article page