ID 2.1.1.320 DE type II protein arginine methyltransferase. CA L-arginyl-[protein] + 2 S-adenosyl-L-methionine = 2 H(+) + CA N(omega),N(omega)'-dimethyl-L-arginyl-[protein] + 2 S-adenosyl-L- CA homocysteine. CC -!- The enzyme catalyzes the methylation of one of the terminal guanidino CC nitrogen atoms in arginine residues within proteins, forming CC monomethylarginine, followed by the methylation of the second CC terminal nitrogen atom to form a symmetrical dimethylarginine. CC -!- The mammalian enzyme is active in both the nucleus and the cytoplasm, CC and plays a role in the assembly of snRNP core particles by CC methylating certain small nuclear ribonucleoproteins. cf. CC EC 2.1.1.319, EC 2.1.1.321 and EC 2.1.1.322. CC -!- Formerly EC 2.1.1.23, EC 2.1.1.124, EC 2.1.1.125 and EC 2.1.1.126. DR A7YW45, ANM5_BOVIN ; P46580, ANM5_CAEEL ; Q54KI3, ANM5_DICDI ; DR O14744, ANM5_HUMAN ; Q4R5M3, ANM5_MACFA ; Q8CIG8, ANM5_MOUSE ; DR A2X0Q3, ANM5_ORYSI ; Q6YXZ7, ANM5_ORYSJ ; Q5R698, ANM5_PONAB ; DR Q6NUA1, ANM5_XENLA ; Q6P2P2, ANM9_HUMAN ; Q3U3W5, ANM9_MOUSE ; DR A0JMU5, ANM9_XENLA ; P38274, HSL7_YEAST ; Q2KHV5, NDUF7_BOVIN; DR Q09644, NDUF7_CAEEL; Q08BY0, NDUF7_DANRE; Q54S83, NDUF7_DICDI; DR Q9VGR2, NDUF7_DROME; Q7L592, NDUF7_HUMAN; Q9CWG8, NDUF7_MOUSE; DR Q5XI79, NDUF7_RAT ; O14138, NDUF7_SCHPO; Q6GQ37, NDUF7_XENLA; DR Q5BKM6, NDUF7_XENTR; P36052, NDUF7_YEAST; //