(4R)-hydroxysphinganine + a fatty acyl-CoA => an N-acyl-(4R)-4-hydroxysphinganine + CoA + H(+)
(4r)-hydroxysphinganine + a fatty acyl-coa => an n-acyl-(4r)-4-hydroxysphinganine + coa + h(+)
(4R)-hydroxysphinganine + a fatty acyl-CoA => an N-acyl-(4R)-4-hydroxysphinganine + CoA + H(+)
(4r)-hydroxysphinganine + a fatty acyl-coa => an n-acyl-(4r)-4-hydroxysphinganine + coa + h(+)