Cloned (Comment) | Organism |
---|---|
overexpression in C2C12 cell | Mus musculus |
Protein Variants | Comment | Organism |
---|---|---|
G82D | catalytically inactive. Overexpression in myoblast cells significantly increases cell growth and delays the beginning of myogenesis | Mus musculus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Mus musculus | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
C2C12 cell | - |
Mus musculus | - |
General Information | Comment | Organism |
---|---|---|
physiological function | SphK activity, SphK1 protein content and sphingosine 1-phosphate formation are enhanced in myoblasts that became confluent as well as in differentiating cells. Enforced expression of SphK1 reduces the myoblast proliferation rate, enhances the expression of myogenic differentiation markers and anticipates the onset of differentiated muscle phenotype. Down-regulation of SphK1 by specific silencing byRNA interference or overexpression of a catalytically inactive SphK1, significantly increases cell growth and delays the beginning of myogenesis. Exogenous addition of sphingosine 1-phosphate rescues the biological processes. Stimulation of myogenesis in SphK1-overexpressing myoblasts is abrogated by treatment with short interfering RNA specific for S1P2 receptor | Mus musculus |