Methylation of histone H4 at arginine 3 occurs in vivo and is mediated by the nuclear receptor coactivator PRMT1Brian D. Strahl; Scott D. Briggs; Cynthia J. Brame; Jennifer A. Caldwell; Stephen S. Koh; Han Ma; Richard G. Cook; Jeffrey Shabanowitz; Donald F. Hunt; Michael R. Stallcup; C.David Allis · 2001