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Carnitine palmitoyltransferase I (CPT1) also known as carnitine acyltransferase I, CPTI, CAT1, CoA:carnitine acyl transferase (CCAT), or palmitoylCoA transferase I, is a mitochondrial enzyme responsible for the formation of acyl carnitines by catalyzing the transfer of the acyl group of a long-chain fatty acyl-CoA from coenzyme A to l-carnitine.
Carnitine, a natural substance acquired mostly through the diet, is used by cells to process fats and produce energy. People with this disorder have a faulty enzyme, carnitine palmitoyltransferase I , that prevents these long-chain fatty acids from being transported into the mitochondria to be broken down.
Carnitine palmitoyltransferase II (CPT II) is a peripheral inner mitochondrial membrane protein ubiquitously found as a monomeric protein in all tissues that oxidize fatty acids. [12] It catalyzes the transesterification of palmitoylcarnitine back into palmitoyl-CoA which is now an activated substrate for β-oxidation inside the matrix.
Palmitoylcarnitine is an ester derivative of carnitine involved in the metabolism of fatty acids.During the tricarboxylic acid cycle (TCA), fatty acids undergo a process known as β-oxidation to produce energy in the form of ATP. β-oxidation occurs primarily within mitochondria, however the mitochondrial membrane prevents the entry of long chain fatty acids (>C10), so the conversion of fatty ...
12896 Ensembl ENSG00000157184 ENSMUSG00000028607 UniProt P23786 P52825 RefSeq (mRNA) NM_000098 NM_001330589 NM_009949 RefSeq (protein) NP_000089 NP_001317518 NP_034079 Location (UCSC) Chr 1: 53.2 – 53.21 Mb Chr 4: 107.76 – 107.78 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Carnitine O-palmitoyltransferase 2, mitochondrial is an enzyme that in humans is encoded by the CPT2 ...
Carnitine O-palmitoyltransferase (also called carnitine palmitoyltransferase) is a mitochondrial transferase enzyme (EC 2.3.1.21) involved in the metabolism of palmitoylcarnitine into palmitoyl-CoA. A related transferase is carnitine acyltransferase.
Carnitine Transport Defect; Carnitine-acylcarnitine translocase deficiency (CACT) Carnitine Palmitoyl Transferase I & II ( CPT I deficiency & CPT II deficiency) 2,4 Dienoyl-CoA Reductase Deficiency; Electron Transfer Flavoprotein (ETF) Dehydrogenase Deficiency (GA-II/MADD) 3-Hydroxy-3-methylglutaryl-CoA lyase deficiency (HMG deficiency)
Etomoxir, or rac-Ethyl 2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate, in form of the dextrorotatory (R)-(+)- enantiomer, is an irreversible inhibitor of carnitine palmitoyltransferase-1 (CPT-1; EC 2.3.1.21) on the inner face of the outer mitochondrial membrane. [2]