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L-Arginine:glycine amidinotransferase catalyses the first, which is also the committed step in the formation of creatine. The second step of the process, producing the actual creatine molecule, occurs solely in the cytosol, where the second enzyme, S-adenosylmethionine:guanidinoacetate methyltransferase (GAMT), is found.
Arginine:glycine amidinotransferase deficiency or AGAT deficiency is an autosomal recessive cerebral creatine deficiency caused by a deficiency of the enzyme arginine:glycine amidinotransferase. This enzyme deficiency results in decreased creatine synthesis, and is caused by biallelic pathogenic variants in GATM. Individuals with AGAT ...
Creatine supplements are marketed in ethyl ester, gluconate, monohydrate, and nitrate forms. [40] Creatine supplementation for sporting performance enhancement is considered safe for short-term use but there is a lack of safety data for long term use, or for use in children and adolescents. [41] Some athletes choose to cycle on and off creatine ...
Creatine conversion to phosphocreatine is catalysed by creatine kinase; spontaneous formation of creatinine occurs during the reaction. [7] Creatinine is removed from the blood chiefly by the kidneys, primarily by glomerular filtration, but also by proximal tubular secretion. Little or no tubular reabsorption of creatinine occurs. If filtration ...
2628 67092 Ensembl ENSG00000171766 ENSMUSG00000027199 UniProt P50440 Q9D964 RefSeq (mRNA) NM_001482 NM_001321015 NM_025961 RefSeq (protein) NP_001307944 NP_001473 NP_080237 Location (UCSC) Chr 15: 45.36 – 45.4 Mb Chr 2: 122.42 – 122.44 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Glycine amidinotransferase, mitochondrial is an enzyme that in humans is encoded by the GATM gene ...
Creatine-alpha-ketoglutarate is a salt formed from alpha-ketoglutaric acid (AKG) and creatine. Creatine is a mass-produced fitness supplement that is supposed to increase the user's muscle mass, strength and power. Creatine requires a delivery system for cell uptake. [citation needed] An example is arginine alpha-ketoglutarate.
Phosphocreatine, also known as creatine phosphate (CP) or PCr (Pcr), is a phosphorylated form of creatine that serves as a rapidly mobilizable reserve of high-energy phosphates in skeletal muscle, myocardium and the brain to recycle adenosine triphosphate, the energy currency of the cell.
The recent patent literature describes the synthesis of glycocyamine by catalytic oxidation of ethanolamine to glycine and subsequent reaction with cyanamide in aqueous solution in high yield, analogous to the synthesis of creatine starting from 2-methylaminoethanol via sarcosine.