Sequence of the murine hnRNP A2/B1 gene. The complete nucleotide sequence and predicted amino acid sequence of the murine hnRNP A2/B1 cDNA was determined from two overlapping clones. The predicted amino acid sequence is identical to the predicted human protein with the exception of the substitution of threonine for asparagine at amino acid 287 (shaded). The site of provirus integration in 1B4 cells is indicated. Flanking sequences isolated by inverse PCR colinerar with the cDNA and a polyadenylation signal are underlined.