Cis-Methylated LncRNAs
( CML )

In the CML group, DNA methylation adjacent to/on the lncRNAs loci, such as the promoter or the imprinting control region, directly modulates the expression of target lncRNAs as a cis-regulator.

Trans-Methylation Due to LncRNAs
( TMDL )

In the TMDL group, lncRNAs regulate the DNA methylation of a trans- genomic loci as an intermedium by recruiting the DNA (cytosine-5-)-methyltransferase (DNMT).

Trans-Methylation Regulated LncRNAs
( TMRL )

In the TMRL group, alteration of the DNA methylation state in specific genomic loci regulates the transcription of its antisense-oriented lncRNAs.