SRSF1 and neoplasm: In the total number of biopsies (n = 16) included in this analysis, and in direct comparison with hnRNP A1 as the protein with the highest frequency and degree of altered expression in the tumours, a high frequency (75%) of concurrent deregulation of ASF/SF2 and hnRNP A1 was apparent, representing mainly over-expression of both proteins (data not shown).