label: (4R)-hydroxysphing-(8E)-enine + tetracosanoyl-CoA <=> N-tetracosanoyl-(4R)-hydroxysphing-(8E)-enine + CoA + H(+)
label_lc: (4r)-hydroxysphing-(8e)-enine + tetracosanoyl-coa <=> n-tetracosanoyl-(4r)-hydroxysphing-(8e)-enine + coa + h(+)