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Overview

Uniprot IDQ06A98
Protein NameSerine/arginine-rich splicing factor 2
Gene NameSRSF2
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
36 TLRRVFEKYGRVGDV

Function

Necessary for the splicing of pre-mRNA. It is required for formation of the earliest ATP-dependent splicing complex and interacts with spliceosomal components bound to both the 5'- and 3'-splice sites during spliceosome assembly. It also is required for ATP-dependent interactions of both U1 and U2 snRNPs with pre-mRNA. 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. Binds to purine-rich RNA sequences, either 5'-AGSAGAGTA-3' (S=C or G) or 5'-GTTCGAGTA-3'. Can bind to beta-globin mRNA and commit it to the splicing pathway. The phosphorylated form (by SRPK2) is required for cellular apoptosis in response to cisplatin treatment

Protein Sequence

10 MSYGRPPPDV 20 EGMTSLKVDN 30 LTYRTSPDTL 40 RRVFEKYGRV 50 GDVYIPRDRY 60 TKESRGFAFV 70 RFHDKRDAED 80 AMDAMDGAVL 90 DGRELRVQMA 100 RYGRPPDSHH 110 SRRGPPPRRY 120 GGGGYGRRSR 130 SPRRRRRSRS 140 RSRSRSRSRS 150 RSRYSRSKSR 160 SRTRSRSRST 170 SKSRSARRSK 180 SKSSSVSRSR 190 SRSRSRSRSR 200 SPPPASKRES 210 KSRSRSKSPP 220 KSPEEEGAVS S

Gene Ontology

Classification GO ID Description
Cellular Component GO:0016607 nuclear speck
Molecular Function GO:0003729 mRNA binding
Biological Process GO:0006397 mRNA processing
Biological Process GO:0000381 regulation of alternative mRNA splicing, via spliceosome
Biological Process GO:0008380 RNA splicing

Reference

[1] Fan S, Zhou R, Wen H, Ye H, Ma S et al.. Global profiling of protein lactylome in porcine granulosa cells.. J Ovarian Res 18(1):177. 2025 Aug 8. PMID: 40781717.