FUNCTION: Histone demethylase that specifically demethylates 'Lys-4' of histone H3, thereby playing a central role in histone code (PubMed:28262558). Does not demethylate histone H3 'Lys-9', H3 'Lys-27', H3 'Lys-36', H3 'Lys-79' or H4 'Lys-20'. Demethylates trimethylated and dimethylated but not mon...
                        FUNCTION: Histone demethylase that specifically demethylates 'Lys-4' of histone H3, thereby playing a central role in histone code (PubMed:28262558). Does not demethylate histone H3 'Lys-9', H3 'Lys-27', H3 'Lys-36', H3 'Lys-79' or H4 'Lys-20'. Demethylates trimethylated and dimethylated but not monomethylated H3 'Lys-4'. Participates in transcriptional repression of neuronal genes by recruiting histone deacetylases and REST at neuron-restrictive silencer elements. Represses the CLOCK-ARNTL/BMAL1 heterodimer-mediated transcriptional activation of the core clock component PER2 (By similarity). {ECO:0000250|UniProtKB:P41230, ECO:0000269|PubMed:17320160, ECO:0000269|PubMed:17320161, ECO:0000269|PubMed:17468742, ECO:0000269|PubMed:26645689, ECO:0000269|PubMed:28262558}.
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                        GO - Biological processes (BP): 
                        chromatin remodeling [GO:0006338]; histone H3-K4 demethylation [GO:0034720]; negative regulation of transcription, DNA-templated [GO:0045892]; response to toxic substance [GO:0009636]; rhythmic process [GO:0048511]...
                        chromatin remodeling [GO:0006338]; histone H3-K4 demethylation [GO:0034720]; negative regulation of transcription, DNA-templated [GO:0045892]; response to toxic substance [GO:0009636]; rhythmic process [GO:0048511]
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                        GO - Molecular function (MF): 
                        DNA binding [GO:0003677]; histone demethylase activity [GO:0032452]; histone H3-methyl-lysine-4 demethylase activity [GO:0032453]; histone H3-tri/di/monomethyl-lysine-4 demethylase activity [GO:0034647]; zinc ion binding [GO:0008270]...
                        DNA binding [GO:0003677]; histone demethylase activity [GO:0032452]; histone H3-methyl-lysine-4 demethylase activity [GO:0032453]; histone H3-tri/di/monomethyl-lysine-4 demethylase activity [GO:0034647]; zinc ion binding [GO:0008270]
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                        GO - Cellular component (CC): 
                        cytosol [GO:0005829]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]...
                        cytosol [GO:0005829]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]
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