Identification of the methylation preference region in heterogeneous nuclear ribonucleoprotein K by protein arginine methyltransferase 1 and its implication in regulating nuclear/cytoplasmic distribution

► Verifying by direct methylation assay the substrate sites of PRMT1 in the hnRNP K protein. ► Identifying the preferred PMRT1 methylation regions in hnRNP K by kinetic analysis. ► Linking methylation in regulating nuclear localization of hnRNP K.