Fig. 3

Methylation patterns of HOXL subclass homeoboxes. A The methylation levels of HOXL subclass homeoboxes genes in normal and ESCC samples. B The methylation levels of subgroup 2 genes between normal and ESCC samples. C The methylation correlation of HOXL subclass homeobox genes. The correlation coefficients were estimated using Pearson’s method. The β values of each gene in A–C were calculated using TCGA ESCC dataset