Heterogeneous nuclear ribonucleoprotein (hnRNP)-protein binding the poly(A) tail of mRNA and probably involved in some steps of pre-mRNA maturation. Interacts with the poly(A) tail of mRNA in nucleus. Expressed at low levels in leaves, stems, flowers, and seedlings. Repressed by ozone-induced oxidative stress. Belongs to the polyadenylate-binding RBP47 family. Truncated N-terminus.