Search results
Results From The WOW.Com Content Network
L-Arginine:glycine amidinotransferase (AGAT; EC 2.1.4.1) is the enzyme that catalyses the transfer of an amidino group from L-arginine to glycine. The products are L-ornithine and glycocyamine, also known as guanidinoacetate, the immediate precursor of creatine. Creatine and its phosphorylated form play a central role in the energy metabolism ...
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 .
There are also two enzymatic defects of creatine biosynthesis, arginine:glycine amidinotransferase deficiency (AGAT deficiency), caused by variants in GATM gene and guanidinoacetate methyltransferase deficiency (GAMT deficiency), caused by variants in GAMT gene. The two single enzyme defects are both inherited in an autosomal recessive manner. [2]
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 ...
Thus, the two substrates of this enzyme are L-arginine and 1-amino-1-deoxy-scyllo-inositol 4-phosphate, whereas its two products are L-ornithine and 1-guanidino-1-deoxy-scyllo-inositol 4-phosphate. This enzyme belongs to the family of transferases that transfer one-carbon groups, specifically the amidinotransferases.
A single 5 gram (5000 mg) oral dose in healthy adults results in a peak plasma creatine level of approximately 120 mg/L at 1–2 hours post-ingestion. Creatine has a fairly short elimination half life, averaging just less than 3 hours, so to maintain an elevated plasma level it would be necessary to take small oral doses every 3–6 hours ...
Only the l-arginine (symbol Arg or R) enantiomer is found naturally. [1] Arg residues are common components of proteins. It is encoded by the codons CGU, CGC, CGA, CGG, AGA, and AGG. [2] The guanidine group in arginine is the precursor for the biosynthesis of nitric oxide. [3] Like all amino acids, it is a white, water-soluble solid.
In contrast, inhibiting arginase with ABH or other boronic acid inhibitors will maintain normal cellular levels of arginine, thus allowing for normal muscle relaxation and sexual response. [ 8 ] Arginase is a controlling factor in both male erectile function and female sexual arousal, and is therefore a potential target for treatment of sexual ...