- Protein Name
- SRSF protein kinase 2 N-terminal
- Gene Name
- SRPK2
- Organism
-
Homo sapiens
- Function
- Serine/arginine-rich protein-specific kinase which specifically phosphorylates its substrates at serine residues located in regions rich in arginine/serine dipeptides, known as RS domains and is involved in the phosphorylation of SR splicing factors and the regulation of splicing. Promotes neuronal apoptosis by up-regulating cyclin-D1 (CCND1) expression. This is done by the phosphorylation of SRSF2, leading to the suppression of p53/TP53 phosphorylation thereby relieving the repressive effect of p53/TP53 on cyclin-D1 (CCND1) expression. Phosphorylates ACIN1, and redistributes it from the nuclear speckles to the nucleoplasm, resulting in cyclin A1 but not cyclin A2 up-regulation. Plays an essential role in spliceosomal B complex formation via the phosphorylation of DDX23/PRP28. Can mediate hepatitis B virus (HBV) core protein phosphorylation. Plays a negative role in the regulation of HBV replication through a mechanism not involving the phosphorylation of the core protein but by reducing the packaging efficiency of the pregenomic RNA (pgRNA) without affecting the formation of the viral core particles.
| Site |
Maximum Consensus Site Population |
Minimum Consensus Site Population |
Median Consensus Site Population |
| DFG |
14 |
14 |
14.0 |
| EDI |
15 |
15 |
15.0 |
| CMP |
5 |
5 |
5.0 |
| ATP |
8 |
3 |
4.0 |
| PDB ID |
Maximum Consensus Site Population |
| MPP site |
DFG site |
PIF site |
DRS site |
DEF site |
EDI site |
MT3 site |
AAS site |
LBP site |
CMP site |
PDIG site |
ATP site |
PMP site |
| Total Druggable Structures per Site |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
2X7G
|
0 |
14 |
0 |
0 |
0 |
15 |
0 |
0 |
0 |
5 |
0 |
8 |
0 |