ASP is found in 136029 entries

ASP in polymers: 135926 entries. Examples include: 101M, 102L, 102M

ASP as free ligands, exist in 103 entries. Examples include 1APZ, 1FIY, 1GC4

Find related ligands: Stereoisomers Similar ligands Chemical Structure Search

View summary at Ligand Expo

Chemical Component Summary

Identifiers L-aspartic acid
(2S)-2-azanylbutanedioic acid
Formula C4 H7 N O4
Molecular Weight 133.10 g/mol
Type L-peptide linking
Isomeric SMILES N[C@@H](CC(O)=O)C(O)=O
InChI InChI=1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1

Chemical Details

Formal Charge 0
Atom Count 16
Chiral Atom Count 1
Chiral Atoms CA
Bond Count 15
Aromatic Bond Count 0
Leaving Atoms OXT H2 HXT

Drug Info: DrugBank

DrugBank ID DB00128   (Stereoisomeric match)
Name L-Aspartic Acid
  • approved
  • nutraceutical
Description One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter. [PubChem]
  • (S)-2-aminobutanedioic acid
  • (S)-2-aminosuccinic acid
  • 2-Aminosuccinic acid
  • Asp
  • Aspartic acid
Brand Names
  • Aminosyn II
  • Aminosyn II 10%
  • Aminosyn II 10% With Electrolytes
  • Aminosyn II 15%
  • Aminosyn II 5% Inj
Affected Organism Humans and other mammals
Indication There is no support for the claim that aspartates are exercise performance enhancers, i.e. ergogenic aids.
Pharmacology L-aspartate is considered a non-essential amino acid, meaning that, under normal physiological conditions, sufficient amounts of the amino acid are synthesized in the body to meet the body's requirements. L-aspartate is formed by the transamination of the Krebs cycle intermediate oxaloacetate. The amino acid serves as a precursor for synthesis of proteins, oligopeptides, purines, pyrimidines, nucleic acids and L-arginine. L-aspartate is a glycogenic amino acid, and it can also promote energy production via its metabolism in the Krebs cycle. These latter activities were the rationale for the claim that supplemental aspartate has an anti-fatigue effect on skeletal muscle, a claim that was never confirmed.
Mechanism of action There are also claims that L-aspartate has ergogenic effects, that it enhances performance in both prolonged exercise and short intensive exercise. It is hypothesized that L-aspartate, especially the potassium magnesium aspartate salt, spares stores of muscle glycogen and/or promotes a faster rate of glycogen resynthesis during exercise. It has also been hypothesized that L-aspartate can enhance short intensive exercise by serving as a substrate for energy production in the Krebs cycle and for stimulating the purine nucleotide cycle.
Route of administration Intravenous
  • Amino Acids
  • Amino Acids, Acidic
  • Amino Acids, Dicarboxylic
  • Amino Acids, Peptides, and Proteins
  • Dietary Supplements
CAS number 56-84-8

Drug Targets

Name Sequence Search Pharmacological Action Actions
Asparagine synthetase [glutamine-hydrolyzing] MCGIWALFGSDDCLSVQCLSAMKIAHRGPDAFRFENVNGYTNCCFGFHRL... unknown
Calcium-binding mitochondrial carrier protein Aralar1 MAVKVQTTKRGDPHELRNIFLQYASTEVDGERYMTPEDFVQRYLGLYNDP... unknown
Calcium-binding mitochondrial carrier protein Aralar2 MAAAKVALTKRADPAELRTIFLKYASIEKNGEFFMSPNDFVTRYLNIFGE... unknown
Aspartate aminotransferase, mitochondrial MALLHSGRVLPGIAAAFHPGLAAAASARASSWWTHVEMGPPDPILGVTEA... unknown
View More Drug Targets
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID: 21059682