L-arginine + S-adenosyl-L-methionine = N(omega)-methyl-L-arginine + S-adenosyl-L-homocysteine + H(+)
l-arginine + s-adenosyl-l-methionine = n(omega)-methyl-l-arginine + s-adenosyl-l-homocysteine + h(+)
"arginine N(omega)-methyltransferase"
"arginine n(omega)-methyltransferase"