Background/Introduction: Sphingosine kinase 1 is an enzyme that in humans is encoded by the 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 proteincoupled 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.
NCBI and Uniprot Product Information
NCBI Description
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]
Uniprot Description
SPHK1: 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. Interacts with ACY1. Binds to calmodulin. Interacts with SPHKAP. Widely expressed with highest levels in adult liver, kidney, heart and skeletal muscle. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: EC 2.7.1.91; Kinase, lipid; Lipid Metabolism - sphingolipid
Chromosomal Location of Human Ortholog: 17q25.2
Cellular Component: cytoplasm; cytosol; plasma membrane
Molecular Function: ATP binding; calmodulin binding; D-erythro-sphingosine kinase activity; DNA binding; magnesium ion binding; protein binding; protein phosphatase 2A binding; sphinganine kinase activity
Biological Process: activation of NF-kappaB transcription factor; calcium-mediated signaling; negative regulation of apoptosis; positive regulation of angiogenesis; positive regulation of cell growth; positive regulation of cell migration; positive regulation of fibroblast proliferation; positive regulation of mitotic cell cycle; positive regulation of NF-kappaB import into nucleus; positive regulation of protein ubiquitination; positive regulation of smooth muscle contraction; protein folding; signal transduction; sphingolipid biosynthetic process; sphingosine biosynthetic process; sphingosine metabolic process
Research Articles on SPHK1
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Product Notes
The Human SPHK1 sphk1 (Catalog #AAA178546) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA178546 ELISA Kit recognizes Human SPHK1. It is sometimes possible for the material contained within the vial of "SPHK1, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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