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Acetyl-L-carnitine, ALCAR or ALC, is an acetylated form of L-carnitine. It is naturally produced by the human body, and it is available as a dietary supplement. Acetylcarnitine is broken down in the blood by plasma esterases to carnitine which is used by the body to transport fatty acids into the mitochondria for breakdown and energy production.
L-Carnitine, acetyl-l-carnitine, and propionyl-l-carnitine are available in dietary supplement pills or powders, with a daily amount of 0.5 to 1 g considered to be safe. [1] [3] It is also a drug approved by the Food and Drug Administration to treat primary and certain secondary carnitine-deficiency syndromes secondary to inherited diseases. [1 ...
This page was last edited on 3 September 2006, at 04:56 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Hormone-sensitive lipase produces diglycerides from triglycerides, freeing a fatty acid molecule for oxidation. Acetyl-CoA carboxylase catalyzes the production of malonyl-CoA from acetyl-CoA. Malonyl-CoA reduces the activity of carnitine palmitoyltransferase I, an enzyme that brings fatty acids into the mitochondria for β-oxidation. Insulin ...
Carnitine O-acetyltransferase also called carnitine acetyltransferase (CRAT, or CAT) [5] (EC 2.3.1.7) is an enzyme that encoded by the CRAT gene that catalyzes the chemical reaction. acetyl-CoA + carnitine CoA + acetylcarnitine. where the acetyl group displaces the hydrogen atom in the central hydroxyl group of carnitine.
The second step of L-carnitine biosynthesis requires the 3-hydroxy-N ε-trimethyllysine aldolase enzyme. 3-hydroxy-N ε-trimethyllysine aldolase is a pyridoxal phosphate dependent aldolase, and it catalyses the cleavage of 3-hydroxy-N ε-trimethyllysine into 4-N-trimethylaminobutyraldehyde and glycine.
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-acylcarnitine translocase deficiency has an autosomal recessive pattern of inheritance. Carnitine-acylcarnitine translocase deficiency is a rare, autosomal recessive metabolic disorder that prevents the body from converting long-chain fatty acids into energy, particularly during periods without food. [ 1 ]