SFRS7 (Splicing factor, arginine/serine-rich 7); involved in pre-mRNA splicing, regulation of alternative splicing, involved in the splicing of several genes related to cancer: CD44, BRCA1, and BCL-X. Dysregulation of SFRS7 expression and splicing activity has been linked to various cancers. This evidence concerns the gene BCL2L1 and cancer.