The phosphorylation of the proteins of rat liver heterogeneous ribonucleoprotein particles by an endogenous kinase activity.
An endogenous protein kinase activity of liver heterogeneous nuclear ribonucleoprotein particles has been characterized and the particle proteins which it phosphorylates in vitro have been fractionated on two-dimensional polyacrylamide gels. The activity is dependent on Mg2+ and is further stimulated by cyclic AMP, polyamines and Mn2+.
D000818:Animals; D000242:Cyclic AMP / Q000378:metabolism; D008099:Liver / Q000378:metabolism*; D008274:Magnesium / Q000378:metabolism; D008297:Male; D008345:Manganese / Q000378:metabolism; D010766:Phosphorylation; D011073:Polyamines / Q000378:metabolism; D011494:Protein Kinases / Q000378:metabolism*; D012332:RNA, Heterogeneous Nuclear / Q000378:metabolism*; D051381:Rats
D011073:Polyamines; D012332:RNA, Heterogeneous Nuclear; D008345:Manganese; D000242:Cyclic AMP; D011494:Protein Kinases; D008274:Magnesium