sphinganine (d-20:0)

Sphinganine (d20:0) is a natural isomer of dihydro-D-erythro-sphinganine (sphinganine (d18:0); that is a precursor of ceramide and sphingosine as well as a substrate for sphingosine kinases, which generate sphingosine-1-phosphate (d18:1) . In S. cerevisiae, the amount of sphinganine (d20:0) increases 10.8-fold in response to heat stress, indicating it is involved in heat stress adaptation. Sphinganine levels increase significantly in response to certain mycotoxins, including fumonisins as well as in some cancers. Sphinganine can block protein kinase C activation in some cases but not others.

Sphinganine is a synthetic bioactive sphingolipid that inhibits the growth of C. glabrata and C. albicans with a minimum fungicidal concentration (MFC) value of 0.5 μg/ml for both. More commonly, sphinganine is used as an internal standard in the analysis of sphingoid compounds by chromatographic or spectrometric methods.

Sphinganine 1-phosphate (鞘氨醇-1-磷酸）是sphingolipid代谢途径中的一个中间产物，结构上和sphingosine相似。D-erythro-Dihydrosphingosine 1-phosphate在小鼠中通过激活S1P1受体对肾脏和肝脏具有保护作用。在智人（Homo sapiens）中作为S1P4的激动剂，并且可能激活GPR63（G蛋白偶联受体），主要用于研究Fabry病，Gaucher病，Krabbe疾病和脑白质营养不良（Leukodystrophy）。