Product Detail
Product NameRecombinant Human Serine,arginine-rich splicing factor 1(SRSF1)
Host SpeciesE.coli
PurificationGreater than 90% as determined by SDS-PAGE.
Immunogen DescExpression Region:2-248aa
Sequence Info:Full Length
Other NamesAlternative-splicing factor 1 ;ASF-1Splicing factor, arginine,serine-rich 1pre-mRNA-splicing factor SF2, P33 subunit
Accession NoQ07955
Uniprot
Q07955
Gene ID
6426;
Calculated MW43.6 kDa
FormulationTris-based buffer50% glycerol
StorageThe shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20˚C,-80˚C. The shelf life of lyophilized form is 12 months at -20˚C,-80˚C.
Notes:Repeated freezing and thawing is not recommended. Store working aliquots at 4˚C for up to one week.
Tag InfoN-terminal 6xHis-SUMO-tagged
Application Details
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.
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