KDM4A

This gene is a member of the Jumonji domain 2 (JMJD2) family and encodes a protein containing a JmjN domain, a JmjC domain, a JD2H domain, two TUDOR domains, and two PHD-type zinc fingers. This nuclear protein functions as a trimethylation-specific demethylase, converting specific trimethylated histone residues to the dimethylated form, and as a transcriptional repressor. [provided by RefSeq, Apr 2009]

Lysine Demethylase 4A

Histone demethylase that specifically demethylates 'Lys-9' and 'Lys-36' residues of histone H3, thereby playing a central role in histone code (PubMed:26741168).
Does not demethylate histone H3 'Lys-4', H3 'Lys-27' nor H4 'Lys-20'. Demethylates trimethylated H3 'Lys-9' and H3 'Lys-36' residue, while it has no activity on mono- and dimethylated residues. Demethylation of Lys residue generates formaldehyde and succinate. Participates in transcriptional repression of ASCL2 and E2F-responsive promoters via the recruitment of histone deacetylases and NCOR1, respectively3 Publications
Isoform 2
Crucial for muscle differentiation, promotes transcriptional activation of the Myog gene by directing the removal of repressive chromatin marks at its promoter. Lacks the N-terminal demethylase domain.

Cardiac muscle hypertrophy in response to stressIEA:Ensembl
Chromatin remodelingManual Assertion Based On ExperimentIBA:GO_Central
Histone demethylationManual Assertion Based On ExperimentIDA:UniProtKB
Histone H3-K36 demethylationManual Assertion Based On ExperimentIDA:UniProtKB
Histone H3-K9 demethylationManual Assertion Based On ExperimentIMP:UniProtKB
Negative regulation of astrocyte differentiationIEA:Ensembl
Negative regulation of autophagyManual Assertion Based On ExperimentIMP:ParkinsonsUK-UCL
Negative regulation of cell deathIEA:Ensembl
Negative regulation of gene expressionManual Assertion Based On ExperimentIMP:ParkinsonsUK-UCL
Negative regulation of histone H3-K9 trimethylationIEA:Ensembl
Negative regulation of transcription, DNA-templatedManual Assertion Based On ExperimentIDA:UniProtKB
Positive regulation of gene expressionIEA:Ensembl
Positive regulation of neuron differentiationIEA:Ensembl
Response to nutrient levelsIEA:Ensembl

Nucleus

Ubiquitinated by RNF8 and RNF168 following DNA damage, leading to its degradation. Degradation promotes accessibility of H4K20me2 mark for DNA repair protein TP53BP1, which is then recruited.