产品内容
本酶催化的反应为1-Phosphatidyl-1D-Myo-Inositol + A (4R)-4-Hydroxy-N-[(2R)-2-Hydroxy-Very-Long-Chain-Acyl]-1-O-{[6-O-(alpha-D-Mannosyl)-1D-Myo-Inositol-1-O-Yl]hydroxyphosphoryl}sphinganine = 1,2-Diacyl-Sn-Glycerol + A (4R)-4-Hydroxy-N-[(2R)-2-Hydroxy-Very-Long-Chain-Acyl]-1-O-[(6-O-{6-O-[(1D-Myo-Inositol-1-O-Yl)hydroxyphosphoryl]-alpha-D-Mannosyl}-1D-Myo-Inositol-1-O-Yl)hydroxyphosphoryl]sphinganine,系统名称为1-Phosphatidyl-1D-Myo-Inositol:(4R)-4-Hydroxy-N-[(2R)-2-Hydroxy-Very-Long-Chain-Acyl]-1-O-{[6-O-(alpha-D-Mannosyl)-1D-Myo-Inositol-1-O-Yl]hydroxyphosphoryl}sphinganine Phosphoinositoltransferase,该酶催化酵母鞘脂生物合成途径中的最终反应。它将第二个磷酸肌醇基团转移到甘露糖基-肌醇磷酸-α-羟基植物神经酰胺(MIPC)上,形成酵母最终且最丰富的鞘脂——甘露糖基-二磷酸肌醇-神经酰胺(MIP2C)。