Arginine methyltransferase that methylates (mono and asymmetric dimethylation) the guanidino nitrogens of arginyl residues present in target proteins. Constitutes the main enzyme that mediates monomethylation and asymmetric dimethylation of histone H4 'Arg-4' (H4R3me1 and H4R3me2a, respectively), a specific tag for epigenetic transcriptional activation (By similarity). Methylates cirbp to regulate its subcellular location (PubMed:12466543). Acts transiently during metamorphosis as a transcription coactivator, enhancing thyroid hormone (T3) receptor (TR)-mediated transcription by enhancing TR binding to the T3 response element (TRE), and histone modification through recruitment of other coactivators (PubMed:19047371).

Belongs to the class I-like SAM-binding methyltransferase superfamily. Protein arginine N-methyltransferase family.

369 amino acids

MAEATTCNMENFVAKLANGMSLRTPIEDVNSAPPEGGVKTNAEDMTSKDYYFDSYAHFGIHEEMLKDEVRTLTYRNSMFHNRHLFKDKVVLDVGSGTGILCMFAAKAGAKKVIGIECSSISDYAIKIVKANKLDHVVTIIKGKVEEVELPVEKVDIIISEWMGYCLFYESMLNTVIYARDKWLTPDGLIFPDRATLYITAIEDRQYKDYKIHWWENVYGFDMSCIKDVAIKEPLVDVVDPKQLVSNACLIKEVDIYTVKVDDLSFTSPFCLQVKRNDYIHALVAYFNIEFTRCHKRTGFSTSPESPYTHWKQTVFYMEDYLTVKTGEEIFGTIGMKPNAKNNRDLDFTFDIDFKGQLCELSCSTDYRMR

42.3 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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