Gene Information
Gene NameSPHK1
OrganismHomo sapiens (Human)
Gene Length384
Protein NamesSphingosine kinase 1 (SK 1) (SPK 1) (EC 2.7.1.91) (Acetyltransferase SPHK1) (EC 2.3.1.-)
Target Namesphingosine kinase 1
Target TypeClinical trial target
Gene Age454 ( ENSG00000176170 )
Evolutionary StageEukaryota
AlphaFoldDBQ9NYA1
Gene CardSPHK1
Uniprot IDQ9NYA1
PfamPF00781
In ASDyes
Allosteric Predictionyes (1.125786976)
Ortholog in AnimalsAlpaca_ SPHK1 ( ortholog_one2one )
Dog_ SPHK1 ( ortholog_one2one )
GuineaPig_ SPHK1 ( ortholog_one2one )
Macaque_ SPHK1 ( ortholog_one2one )
Mouse_ Sphk1 ( ortholog_one2one )
Pig_ SPHK1 ( ortholog_one2one )
Rat_ Sphk1 ( ortholog_one2one )
Rabbit_ SPHK1 ( ortholog_one2one )
OhnologsSPHK2
ParalogsCERK, SPHK2, CERKL, AGK
TissueNA
Tissue SpecificityWidely expressed with highest levels in adult liver, kidney, heart and skeletal muscle. Expressed in brain cortex (at protein level) (PubMed:29662056). {ECO:0000269|PubMed:10802064, ECO:0000269|PubMed:29662056}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 3VZB  (X-ray  2.00A  3VZC  (X-ray  2.30A  3VZD  (X-ray  2.30A  4L02  (X-ray  2.75A  4V24  (X-ray  1.80A 
DBSNP rs346803 
Subcellular location [CC]Cytoplasm {ECO:0000269|PubMed:14575709, ECO:0000269|PubMed:19854831, ECO:0000269|PubMed:29662056}. Nucleus {ECO:0000269|PubMed:14575709, ECO:0000269|PubMed:19854831, ECO:0000269|PubMed:29662056}. Cell membrane {ECO:0000269|PubMed:19854831}. Endosome membrane {ECO:0000269|PubMed:24929359};
Peripheral membrane protein {ECO:0000269|PubMed:24929359}. Membrane, clathrin-coated pit {ECO:0000269|PubMed:24929359}. Synapse {ECO:0000250|UniProtKB:Q8CI15}. Note=Translocated from the cytoplasm to the plasma membrane in a CIB1-dependent manner (PubMed:19854831). Binds to membranes containing negatively charged lipids but not neutral lipids (PubMed:24929359). Recruited to endocytic membranes by sphingosine where promotes membrane fusion (By similarity). {ECO:0000250|UniProtKB:Q8CI15, ECO:0000269|PubMed:19854831, ECO:0000269|PubMed:24929359}.
Mouse PG classificationNA
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