Gene Information
Gene NameSRPK1
OrganismHomo sapiens (Human)
Gene Length655
Protein NamesSRSF protein kinase 1 (EC 2.7.11.1) (SFRS protein kinase 1) (Serine/arginine-rich protein-specific kinase 1) (SR-protein-specific kinase 1)
Target NameNA
Target TypeNA
Gene Age1488 ( ENSG00000096063 )
Evolutionary StageEukaryota
AlphaFoldDBQ96SB4
Gene CardSRPK1
Uniprot IDQ96SB4
PfamPF00069
In ASDyes
Allosteric Predictionyes (0.484583318)
Ortholog in AnimalsAlpaca_ SRPK1 ( ortholog_one2one )
Dog_ SRPK1 ( ortholog_one2one )
GuineaPig_ SRPK1 ( ortholog_one2one )
Mouse_ Srpk1 ( ortholog_one2one )
Pig_ SRPK1 ( ortholog_one2one )
Rat_ Srpk1 ( ortholog_one2one )
Rabbit_ SRPK1 ( ortholog_one2one )
OhnologsSRPK2
ParalogsMAPK8, MAPK10, MAPK1, MAPK6, MAPK12, MAPK13, SRPK3, MAPK4, NLK, MAPK14, MAPK3, MOK, MAPK11, MAK, MAPK15, MAPK7, SRPK2, MAPK9, CILK1
TissueNA
Tissue SpecificityIsoform 2 is predominantly expressed in the testis but is also present at lower levels in heart, ovary, small intestine, liver, kidney, pancreas and skeletal muscle. Isoform 1 is only seen in the testis, at lower levels than isoform 2. Highly expressed in different erythroid and lymphoid cell lines, with isoform 2 being far more abundant than isoform 1. {ECO:0000269|PubMed:10390541, ECO:0000269|PubMed:11509566, ECO:0000269|PubMed:20708644}.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);0.001425(Rat);NULL(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 1WAK  (X-ray  1.73A  1WBP  (X-ray  2.40A  3BEG  (X-ray  2.90A  4WUA  (X-ray  2.00A  5MXX  (X-ray  1.75A  5MY8  (X-ray  1.70A  5NNG  (X-ray  1.20A  5XV7  (X-ray  2.32A  6FAD  (X-ray  2.80A  7DD1  (X-ray  2.05A  7PQS  (X-ray  2.20A 
DBSNP rs35519113 
Subcellular location [CC][Isoform 2]: Cytoplasm. Nucleus. Nucleus matrix. Microsome. Note=Shuttles between the nucleus and the cytoplasm. Inhibition of the Hsp90 ATPase activity, osmotic stress and interaction with HHV-1 ICP27 protein can induce its translocation to the nucleus. KAT5/TIP60 inhibits its nuclear translocation.;
[Isoform 1]: Cytoplasm. Nucleus matrix. Microsome. Note=Mainly localized in the microsomal fraction and the cytoplasm, and to a lesser extent in the nuclear matrix.;
Cytoplasm {ECO:0000269|PubMed:28076779}. Nucleus, nucleoplasm {ECO:0000269|PubMed:28076779}. Nucleus speckle {ECO:0000269|PubMed:28076779}. Chromosome {ECO:0000269|PubMed:28076779}. Note=Preferentially localizes to the promoter of gene coding regions. {ECO:0000269|PubMed:28076779}.
Mouse PG classificationNA
click here to return to the previous page