Histone methylation is performed by histone methyltransferases (HMT) and reversed by demethylases.
In the following table, histone methyl transferases and demethylases are listed by histone modification site. The histone modification entries are linked to antibodies for detection of that site of methylation, the enzymes names are linked to several kind of products (antibodies, enzymes and assay kits):
Histone methylation is in general associated with transcriptional repression, however, methylation of some lysine and arginine residues of histones results in transcriptional activation.
Two histone modifications are particularly associated with active transcription:
Three histone modifications are particularly associated with repressed genes:
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The Uniprot Consortium
Methylation and Demethylation Assay Kits by BPS