(4R)-hydroxyeicosasphinganine + phosphate => 4-hydroxyeicosasphinganine 1-phosphate + H2O
(4r)-hydroxyeicosasphinganine + phosphate => 4-hydroxyeicosasphinganine 1-phosphate + h2o
(4R)-hydroxyeicosasphinganine + phosphate => 4-hydroxyeicosasphinganine 1-phosphate + H2O
(4r)-hydroxyeicosasphinganine + phosphate => 4-hydroxyeicosasphinganine 1-phosphate + h2o