Histone methyltransferase that specifically monomethylates 'Lys-4' of histone H3. H3 'Lys-4' methylation represents a specific tag for epigenetic transcriptional activation. Plays a central role in the transcriptional activation of genes such as collagenase or insulin. Recruited by IPF1/PDX-1 to the insulin promoter, leading to activate transcription. Has also methyltransferase activity toward non-histone proteins such as p53/TP53, TAF10, and possibly TAF7 by recognizing and binding the [KR]-[STA]-K in substrate proteins. Monomethylates 'Lys-189' of TAF10, leading to increase the affinity of TAF10 for RNA polymerase II. Monomethylates 'Lys-372' of p53/TP53, stabilizing p53/TP53 and increasing p53/TP53-mediated transcriptional activation. Also able to demethylated 'Lys-372' of p53/TP53 in vitro.
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Protein Aliases: FLJ21193; H3-K4 methyltransferase; H3-K4-HMTase SETD7; Histone H3-K4 methyltransferase SETD7; histone H3-lysine 4-specific methyltransferase; Histone-lysine N-methyltransferase SETD7; Lysine N-methyltransferase 7; OTTHUMP00000220049; SET domain containing (lysine methyltransferase) 7; SET domain-containing protein 7; SET7/9
Gene Aliases: 1600028F23Rik; H3K4MT; KIAA1717; KMT7; mKIAA1717; SET7; SET7/9; SET9; SETD7