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. 2024 Aug 8;17:25. doi: 10.1186/s13072-024-00546-6

Fig. 4.

Fig. 4

Enrichment of age-associated CpG sites (FDR < 0.05) among chromatin segmentation features stratified by (A) hypermethylated (B) hypomethylated CpG sites. Enrichment expressed as odds ratio. Background CpGs are defined as all CpGs assayed in the Infinium MethylationEPIC array included in our analyses (754,119 CpGs). Fisher’s exact P value * < 0.05, ** < 0.01, *** < 0.001. Active chromatin states: active transcription start site (TssA), flanking active TSS (TssAFlnk), transcription at gene 5′ and 3′ showing both promoter and enhancer (TxFlnk), strong transcription (Tx), weak transcription (TxWk), genic enhancers (EnhG), enhancers (Enh), zinc finger protein genes and repeats (ZNF/Rpts ZNF). Inactive chromatin states: heterochromatin (Het), bivalent/poised TSS (TssBiv), flanking bivalent TSS/Enh (BivFlnk), bivalent enhancer (EnhBiv), repressed polycomb (ReprPC), weak repressed polycomb (ReprPCWk), quiescent/low (Quies)