Accession NumberHMDB00517
Common_NameL-Arginine
DescriptionAn essential amino acid that is physiologically active in the L-form. The L-form is one of the 20 most common natural amino acids. In mammals, arginine is classified as a semiessential or conditionally essential amino acid, depending on the developmental stage and health status of the individual. Infants are unable to effectively synthesize arginine, making it nutritionally essential for infants. Adults, however, are able to synthesize arginine in the urea cycle. Arginine can be considered to be a basic amino acid as the part of the side chain nearest to the backbone is long, carbon-containing and hydrophobic, whereas the end of the side chain is a complex guanidinium group. With a pKa of 12.48, the guanidinium group is positively charged in neutral, acidic and even most basic environments. Because of the conjugation between the double bond and the nitrogen lone pairs, the positive charge is delocalized. This group is able to form multiple H-bonds. L-arginine is an amino acid that has numerous functions in the body. It helps dispose of ammonia, is used to make compounds such as nitric oxide, creatine, L-glutamate, L-proline, and it can be converted to glucose and glycogen if needed. In large doses, L-arginine also stimulates the release of hormones growth hormone and prolactin. It is found in plant and animal proteins, such as dairy products, meat, poultry, fish, and nuts. The ratio of L-arginine to lysine is also important - soy and other plant proteins have more L-arginine than animal sources of protein.
Chemical_IUPAC_Name(2S)-2-amino-5-(diaminomethylideneamino)pentanoic acid
Chemical FormulaC6H14N4O2
Sample Concentration1
Mass Value1
Mass Unitmg
ManufacturerQuattro_QQQ
AnalyzerTriple_Quad
DeliveryFlow_Injection
IonizationPositive
Predicted 1H NMR SpectrumDownload
Predicted 1H NMR PeaklistDownload
Predicted 13C NMR SpectrumDownload
Predicted 13C NMR PeaklistDownload
Sample ConcentrationNot Available
Mass ValueNot Available
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FrequencyNot Available
1H NMR SpectrumNot Available
Sample ConcentrationNot Available
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13C NMR Spectrum
Low Energy Voltage10
Low Energy SpectrumDownload
Low Energy PeaklistDownload
Medium Energy SpectrumDownload
High Energy SpectrumDownload