protein c23 ( mr 110 000 , pi = 5.5 ) , a major phosphoprotein in the nucleolus of mammalian cells , has been shown to contain 1.3 mol % of ng , ng-dimethylarginine ( dma ) [ lischwe , m.a. , roberts , k.d. , yeoman , l.c. , & busch , h. ( 1982 ) j. biol . chem . 257 , 14600-14602 ] .
C1451903
protein c23
C0007609
nucleolus