External Ids for SPHK1 Gene
Previous GeneCards Identifiers for SPHK1 Gene
The protein encoded by this gene catalyzes the phosphorylation of sphingosine to form sphingosine-1-phosphate (S1P), a lipid mediator with both intra- and extracellular functions. Intracellularly, S1P regulates proliferation and survival, and extracellularly, it is a ligand for cell surface G protein-coupled receptors. This protein, and its product S1P, play a key role in TNF-alpha signaling and the NF-kappa-B activation pathway important in inflammatory, antiapoptotic, and immune processes. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]
GeneCards Summary for SPHK1 Gene
SPHK1 (Sphingosine Kinase 1) is a Protein Coding gene. Among its related pathways are Signaling by GPCR and Metabolism. GO annotations related to this gene include magnesium ion binding and protein phosphatase 2A binding. An important paralog of this gene is SPHK2.
UniProtKB/Swiss-Prot for SPHK1 Gene
Catalyzes the phosphorylation of sphingosine to form sphingosine 1-phosphate (SPP), a lipid mediator with both intra- and extracellular functions. Also acts on D-erythro-sphingosine and to a lesser extent sphinganine, but not other lipids, such as D,L-threo-dihydrosphingosine, N,N-dimethylsphingosine, diacylglycerol, ceramide, or phosphatidylinositol.
Sphingosine kinase (SphK) mediates the conversion of sphingosine to sphingosine-1-phosphate, a key sphingolipid signaling molecule involved in cell growth, survival, differentiation and motility. Two mammalian isoforms have been cloned - SPHK1 and SPHK2.