SF2 Antibodies

Target Information

Plays a role in preventing exon skipping, ensuring the accuracy of splicing and regulating alternative splicing. Interacts with other spliceosomal components, via the RS domains, to form a bridge between the 5'- and 3'-splice site binding components, U1 snRNP and U2AF. Can stimulate binding of U1 snRNP to a 5'-splice site-containing pre-mRNA. Binds to purine-rich RNA sequences, either the octamer, 5'-RGAAGAAC-3' (r=A or G) or the decamers, AGGACAGAGC/AGGACGAAGC. Binds preferentially to the 5'-CGAGGCG-3' motif in vitro. Three copies of the octamer constitute a powerful splicing enhancer in vitro, the ASF/SF2 splicing enhancer (ASE) which can specifically activate ASE-dependent splicing. Isoform ASF-2 and isoform ASF-3 act as splicing repressors. May function as export adapter involved in mRNA nuclear export through the TAP/NXF1 pathway. Belongs to the splicing factor SR family. 3 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.

Alternate Names

Alternative-splicing factor 1; ASF; ASF-1; MGC5228; pre-mRNA-splicing factor SF2, P33 subunit; serine and arginine rich splicing factor 1; Serine/arginine-rich splicing factor 1; SF2; SF2P33; SFRS1; splicing factor 2; Splicing factor, arginine/serine-rich 1; splicing factor, arginine/serine-rich, 30-KD, A; SR splicing factor 1; SRp30a; SRSF1