Carnitine O-palmitoyltransferase

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Carnitine O-palmitoyltransferase (or Carnitine palmitoyltransferase) is a mitochondrial transferase enzyme (EC 2.3.1.21) involved in the metabolism of palmitoylcarnitine into palmitoyl-CoA.

Contents 1 Molecules 2 Pathway 3 Human forms of CPT 4 See also 5 External links

Molecules

Palmitoylcarnitine.PNG Palmitoylcarnitine

Palmitoyl coenzyme A.svg Palmitoyl CoA

Pathway

Human forms of CPT

There are four different forms of CPT in humans:

• CPT1A - associated with Carnitine palmitoyltransferase I deficiency
• CPT1B
• CPT1C
• CPT2 - associated with Carnitine palmitoyltransferase II deficiency

See also

• Fatty_acid_degradation#Transport_into_the_mitochondrial_matrix

External links

• Choline/Carnitine o-acyltransferase family in Pfam
• UMich Orientation of Proteins in Membranes protein/pdbid-2h4t
• MeSH Carnitine+O-PalmitoyltransferaseTemplate:Enzyme-stub

v • d • e Transferases: acyltransferases (EC 2.3)
2.3.1: other than amino-acyl groups (mostly acetyltransferases)	N-Acetylglutamate synthase - Choline acetyltransferase - Acetyl-Coenzyme A acetyltransferase - Dihydrolipoyl transacetylase - Acetyl-CoA C-acyltransferase - Beta-galactoside transacetylase - Carnitine O-palmitoyltransferase (CPT1, CPT2) - Acyltransferase like 2 - Chloramphenicol acetyltransferase - Aminolevulinic acid synthase - Beta-ketoacyl-ACP synthase - Glyceronephosphate O-acyltransferase - Lecithin-cholesterol acyltransferase - Histone acetyltransferase (P300/CBP) - Serotonin N-acetyl transferase
2.3.2 - Aminoacyltransferases	Gamma glutamyl transpeptidase - Peptidyl transferase - Transglutaminase (Tissue transglutaminase, Keratinocyte transglutaminase, Factor XIII)
2.3.3 - converted into alkyl on transfer	Citrate synthase - ATP citrate lyase - HMG-CoA synthase

v • d • e Metabolism: lipid metabolism
Lipid production	Acetyl-CoA carboxylase - Fatty acid synthesis: Beta-ketoacyl-ACP synthase - Β-Ketoacyl ACP reductase - 3-Hydroxyacyl ACP dehydrase - Enoyl ACP reductase unsaturated (Enoyl CoA isomerase, 2,4 Dienoyl-CoA reductase) - odd chain (Propionyl-CoA carboxylase) - Fatty acid synthase - Long fatty acyl CoA synthetase
Lipid degradation	Acyl transport: Carnitine palmitoyltransferase I - Carnitine-acylcarnitine translocase - Carnitine palmitoyltransferase II Beta oxidation: Acyl CoA dehydrogenase (ACADL, ACADM, ACADS, ACADVL) - Enoyl-CoA hydratase - 3-Hydroxyacyl CoA dehydrogenase - Acetyl-CoA C-acyltransferase - Mitochondrial trifunctional protein Ketogenesis: HMG-CoA synthase - HMG-CoA lyase - Other: Malonyl-CoA decarboxylase
Phospholipids	Diacylglycerol kinase
Steroids	HMG-CoA reductase - Farnesyl-diphosphate farnesyltransferase - Squalene monooxygenase - Lanosterol synthase - CYP51A1
Prostanoids	Cyclooxygenase - Thromboxane-A synthase - Prostacyclin synthase - Prostaglandin E synthase - Prostaglandin D2 synthase
Leukotrienes	Arachidonate 5-lipoxygenase - 5-Lipoxygenase activating protein - Leukotriene A4 hydrolase - Leukotriene C4 synthase
Bile acids	Cholesterol 7 alpha-hydroxylase