Sphingosine kinase (SphK or SphK1) is a key enzyme catalyzing the phosphorylation of sphingosine to form sphingosine 1-phosphate (SPP or S1P).
SPP is a bioactive lipid that exerts multiple biological effects in a large variety of cell types, acting as either an intracellular messenger or an extracellular ligand coupled to Edg-family receptors.
Competitive inhibitors of SphK1 block formation of SPP and selectively inhibit cellular proliferation induced by a variety of factors.
One potent inhibitor of SphK1 activity is DMS (N, N-dimethylsphingosine).
SPP/SphK1 has been implicated as a signaling pathway that regulates diverse cellular functions, including cell growth, proliferation and survival.
Specifically, SphK1 is involved in the signaling pathway(s) that protects human hepatocytes from the apoptotic action of TNFa.
Furthermore, SPP/SphK1 may play an important role in neuronal survival by regulating activation of SAPKs and caspases.
SphK1 is widely expressed with highest levels in adult liver, kidney, heart and skeletal muscle; however, activation of SphK1 disengages cells from their liver-specific phenotype.
SphK1 is highly homologous with SphK2, another member of a growing class of sphingolipid kinases.
Expression of SphK2 mRNA exhibits a markedly different tissue distribution than that of SphK1 and appears at a later stage in embryonic development.
Applications:Suitable for use in Western Blot, Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000Immunohistochemistry: 1:50-1:200Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:50ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography.
Form:Supplied as a liquid in PBS, 0.09% sodium azide, 50% glycerol.
Specificity:Recognizes human SPHK2.
Isotype:IgG
Calc Applications Abbrev:IHC WB
Calc Crossreactivity:Hu
Immunogen:Recombinant protein corresponding to human SPHK2.