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splicing factor, arginine/serine-rich 19; serine arginine-rich pre-mRNA splicing factor SR-A1; SR-A1, SR-related-CTD-associated factor; (SCAF1, SCAF, SFRS19, SRA1)
Function:
- may function in pre-mRNA splicing (putative)
- interacts with POLR2A
Structure: belongs to the splicing factor SR family
Compartment: nucleus (probable)
Expression:
- ubiquitous
- highly expressed in fetal brain & liver
- poorly expressed in salivary gland, heart, skin & ovary
- up-regulated by estrogens, androgens & glucocorticoids
Pathology:
- over expressed in colorectal carcinomas & ovarian cancers
General
phosphoprotein
splicing factor; snRNP-associated protein
Properties
SIZE: entity length = 1312 aa
MW = 139 kD
COMPARTMENT: cell nucleus
MOTIF: proline-rich region
SITE: 184-267
MOTIF: proline residue (SEVERAL)
serine-rich region {191-207}
MOTIF: serine residue (SEVERAL)
Ser phosphorylation site {S239}
glutamate-rich region {268-288}
MOTIF: glutamate residue (SEVERAL)
proline-rich region
SITE: 380-441
MOTIF: proline residue (SEVERAL)
Ser phosphorylation site {S498}
Ser phosphorylation site {S500}
Ser phosphorylation site {S526}
RNA-binding motif
FOR-BINDING-OF: ribonucleic acid
serine-rich region {534-828}
MOTIF: serine residue (SEVERAL)
arginine-rich region {556-654}
MOTIF: arginine residue (SEVERAL)
Ser phosphorylation site {S719}
Ser phosphorylation site {S734}
Ser phosphorylation site {S738}
Ser phosphorylation site {S872}
Ser phosphorylation site {S874}
lysine-rich region {896-926}
MOTIF: lysine residue (SEVERAL)
Ser phosphorylation site {S933}
Ser phosphorylation site {S941}
Ser phosphorylation site {S965}
Thr phosphorylation site {T976}
Thr phosphorylation site {T989}
glutamate-rich region {1009-1039}
MOTIF: glutamate residue (SEVERAL)
POLR2A interaction {1187-1312}
MOTIF: proline-rich region
SITE: 1284-1311
MOTIF: proline residue (SEVERAL)
Database Correlations
UniProt Q9H7N4
References
UniProt :accession Q9H7N4