3-ketoacyl-CoA
synthase ELO1
Acyl-CoA
synthase
Acyl-CoA
synthase
Acyl-CoA
synthase
Acyl-CoA
synthase
Acyl-CoA
synthase
3-oxoacyl-
[acyl- carrier-
protein]
reductase
Peroxisomal
hydratase-
dehydrogenase-
epimerase
2-enoyl
thioester
reductase
acyl-CoA
thioesterase
3-ketoacyl-CoA
synthase ELO1
3-oxoacyl-
[acyl- carrier-
protein]
reductase
dihydrosphingosine
C-4 hydroxylase
3-
ketosphinganine
reductase
Ceramide
synthase
subunit LIP1
Serine
palmitoyltransferase
1
2-enoyl
thioester
reductase
Peroxisomal
hydratase-
dehydrogenase-
epimerase
Palmityl-CoA
Malonyl-CoA
H+
CO2
3-
Oxooctadecanoyl-
CoA
CoA
Palmitic acid
ATP
CoA
AMP
PPi
H+
NADPH
NADP
(3R)-3-
hydroxy-
stearoyl-CoA
(2E)-
Octadecenoyl-
CoA
H2O
H+
NADPH
Stearoyl-CoA
NADP
H2O
H+
CoA
Stearic acid
H+
Malonyl-CoA
3-
oxoicosanoyl-
CoA
CoA
CO2
NADPH
H+
(3R)-3-
hydroxy-
arachidoyl- CoA
NADP
H+
O2
Sphinganine
H2O
Phytosphingosine
H+
NADPH
3-
Dehydrosphinganine
NADP
Eicosanoyl-CoA
H+
CoA
N-
icosanoylphytosphingosine
Palmityl-CoA
L-Serine
H+
CoA
CO2
(2E)-
eicosenoyl- CoA
H+
NADPH
NADP
H2O
ferrocytochrome
b5
ferricytochrome
b5
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