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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2023-07-07 20:53:56 UTC
HMDB IDHMDB0000148
Secondary Accession Numbers
  • HMDB00148
Metabolite Identification
Common NameGlutamic acid
DescriptionGlutamic acid (Glu), also known as L-glutamic acid or as glutamate, the name of its anion, is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-glutamic acid is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Glutamic acid is found in all organisms ranging from bacteria to plants to animals. It is classified as an acidic, charged (at physiological pH), aliphatic amino acid. In humans it is a non-essential amino acid and can be synthesized via alanine or aspartic acid via alpha-ketoglutarate and the action of various transaminases. Glutamate also plays an important role in the body's disposal of excess or waste nitrogen. Glutamate undergoes deamination, an oxidative reaction catalysed by glutamate dehydrogenase leading to alpha-ketoglutarate. In many respects glutamate is a key molecule in cellular metabolism. Glutamate is the most abundant fast excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, glutamate is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell. In the opposing post-synaptic cell, glutamate receptors, such as the NMDA receptor, bind glutamate and are activated. Because of its role in synaptic plasticity, it is believed that glutamic acid is involved in cognitive functions like learning and memory in the brain. Glutamate transporters are found in neuronal and glial membranes. They rapidly remove glutamate from the extracellular space. In brain injury or disease, they can work in reverse and excess glutamate can accumulate outside cells. This process causes calcium ions to enter cells via NMDA receptor channels, leading to neuronal damage and eventual cell death, and is called excitotoxicity. The mechanisms of cell death include: Damage to mitochondria from excessively high intracellular Ca2+. Glu/Ca2+-mediated promotion of transcription factors for pro-apoptotic genes, or downregulation of transcription factors for anti-apoptotic genes. Excitotoxicity due to glutamate occurs as part of the ischemic cascade and is associated with stroke and diseases like amyotrophic lateral sclerosis, lathyrism, and Alzheimer's disease. Glutamic acid has been implicated in epileptic seizures. Microinjection of glutamic acid into neurons produces spontaneous depolarization around one second apart, and this firing pattern is similar to what is known as paroxysmal depolarizing shift in epileptic attacks. This change in the resting membrane potential at seizure foci could cause spontaneous opening of voltage activated calcium channels, leading to glutamic acid release and further depolarization (http://en.wikipedia.org/wiki/Glutamic_acid). Glutamate was discovered in 1866 when it was extracted from wheat gluten (from where it got its name. Glutamate has an important role as a food additive and food flavoring agent. In 1908, Japanese researcher Kikunae Ikeda identified brown crystals left behind after the evaporation of a large amount of kombu broth (a Japanese soup) as glutamic acid. These crystals, when tasted, reproduced a salty, savory flavor detected in many foods, most especially in seaweed. Professor Ikeda termed this flavor umami. He then patented a method of mass-producing a crystalline salt of glutamic acid, monosodium glutamate.
Structure
Data?1676999673
Synonyms
ValueSource
(S)-2-Aminopentanedioic acidChEBI
(S)-Glutamic acidChEBI
Acide glutamiqueChEBI
Acido glutamicoChEBI
Acidum glutamicumChEBI
EChEBI
GluChEBI
GlutamateChEBI
GLUTAMIC ACIDChEBI
L-GluChEBI
L-Glutaminic acidChEBI
L-GlutaminsaeureChEBI
(S)-2-AminopentanedioateGenerator
(S)-GlutamateGenerator
L-GlutaminateGenerator
L-GlutamateGenerator
(2S)-2-AminopentanedioateHMDB
(2S)-2-Aminopentanedioic acidHMDB
(S)-(+)-GlutamateHMDB
(S)-(+)-Glutamic acidHMDB
1-Amino-propane-1,3-dicarboxylateHMDB
1-Amino-propane-1,3-dicarboxylic acidHMDB
1-Aminopropane-1,3-dicarboxylateHMDB
1-Aminopropane-1,3-dicarboxylic acidHMDB
2-AminoglutarateHMDB
2-Aminoglutaric acidHMDB
2-AminopentanedioateHMDB
2-Aminopentanedioic acidHMDB
a-AminoglutarateHMDB
a-Aminoglutaric acidHMDB
a-GlutamateHMDB
a-Glutamic acidHMDB
AciglutHMDB
alpha-AminoglutarateHMDB
alpha-Aminoglutaric acidHMDB
alpha-GlutamateHMDB
alpha-Glutamic acidHMDB
AminoglutarateHMDB
Aminoglutaric acidHMDB
GltHMDB
GlusateHMDB
GlutHMDB
GlutacidHMDB
GlutamicolHMDB
GlutamidexHMDB
GlutaminateHMDB
Glutaminic acidHMDB
GlutaminolHMDB
GlutatonHMDB
L-(+)-GlutamateHMDB
L-(+)-Glutamic acidHMDB
L-a-AminoglutarateHMDB
L-a-Aminoglutaric acidHMDB
L-alpha-AminoglutarateHMDB
L-alpha-Aminoglutaric acidHMDB
D GlutamateHMDB
Glutamate, potassiumHMDB
Glutamic acid, (D)-isomerHMDB
L Glutamic acidHMDB
D-GlutamateHMDB
L GlutamateHMDB
Aluminum L glutamateHMDB
Aluminum L-glutamateHMDB
L-Glutamate, aluminumHMDB
Potassium glutamateHMDB
2-Acetamido-2-deoxy-D-glucoseHMDB
D-GlcNAcHMDB
N-Acetyl-D-glucosamineHMDB
N-AcetylchitosamineHMDB
N Acetyl D glucosamineHMDB
2 Acetamido 2 deoxy D glucoseHMDB
2 Acetamido 2 deoxyglucoseHMDB
2-Acetamido-2-deoxyglucoseHMDB
AcetylglucosamineHMDB
3alpha,7alpha,12alpha-Trihydroxy-5beta-cholan-24-oylglycineHMDB
N-[(3alpha,5beta,7alpha,12alpha)-3,7,12-Trihydroxy-24-oxocholan-24-yl]glycineHMDB
N-CholoylglycineHMDB
3a,7a,12a-Trihydroxy-5b-cholan-24-oylglycineHMDB
3Α,7α,12α-trihydroxy-5β-cholan-24-oylglycineHMDB
N-[(3a,5b,7a,12a)-3,7,12-Trihydroxy-24-oxocholan-24-yl]glycineHMDB
N-[(3Α,5β,7α,12α)-3,7,12-trihydroxy-24-oxocholan-24-yl]glycineHMDB
GlycocholateHMDB
Glycine cholateHMDB
Glycocholic acid, sodium saltHMDB
CholylglycineHMDB
Glycocholate sodiumHMDB
3alpha,7alpha,12alpha-Trihydroxy-5beta-cholanic acid-24-glycineHMDB
3alpha,7alpha,12alpha-Trihydroxy-N-(carboxymethyl)-5beta-cholan-24-amideHMDB
3Α,7α,12α-trihydroxy-5β-cholanic acid-24-glycineHMDB
3Α,7α,12α-trihydroxy-N-(carboxymethyl)-5β-cholan-24-amideHMDB
Glycoreductodehydrocholic acidHMDB
GlycylcholateHMDB
Glycylcholic acidHMDB
N-(Carboxymethyl)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholan-24-amideHMDB
N-(Carboxymethyl)-3α,7α,12α-trihydroxy-5β-cholan-24-amideHMDB
N-Choloyl-glycineHMDB
3-Hydroxy-1,3,5(10)-estratrien-17-oneHMDB
Follicular hormoneHMDB
FolliculinHMDB
OestroneHMDB
(+)-EstroneHMDB
1,3,5(10)-Estratrien-3-ol-17-oneHMDB
3-Hydroxy-17-keto-estra-1,3,5-trieneHMDB
3-Hydroxyestra-1,3,5(10)-trien-17-oneHMDB
3-Hydroxyestra-1,3,5(10)-triene-17-oneHMDB
3-Hydroxyoestra-1,3,5(10)-trien-17-oneHMDB
D1,3,5(10)-Estratrien-3-ol-17-oneHMDB
Estrone, (+-)-isomerHMDB
Hyrex brand OF estroneHMDB
Estrone, (9 beta)-isomerHMDB
EstrovarinHMDB
KestroneHMDB
WehgenHMDB
Estrone, (8 alpha)-isomerHMDB
Hauck brand OF estroneHMDB
UnigenHMDB
Vortech brand OF estroneHMDB
alpha,beta-Hydroxypropionic acidHMDB
D-GroAHMDB
R-Glyceric acidHMDB
GlycerateHMDB
(R)-GlycerateHMDB
a,b-HydroxypropionateHMDB
a,b-Hydroxypropionic acidHMDB
alpha,beta-HydroxypropionateHMDB
Α,β-hydroxypropionateHMDB
Α,β-hydroxypropionic acidHMDB
R-GlycerateHMDB
(R)-Glyceric acidHMDB
D-GlycerateHMDB
D-Glyceric acidHMDB
(2R)-2,3-Dihydroxypropanoic acidHMDB
(R)-2,3-Dihydroxypropanoic acidHMDB
D-2,3-Dihydroxypropanoic acidHMDB
1-Amino-2-hydroxyethaneHMDB
2-Amino-1-ethanolHMDB
2-Amino-ethanolHMDB
2-Aminoethan-1-olHMDB
2-Aminoethyl alcoholHMDB
2-HydroxyethylamineHMDB
AethanolaminHMDB
AminoethanolHMDB
beta-AminoethanolHMDB
beta-Aminoethyl alcoholHMDB
beta-EthanolamineHMDB
beta-HydroxyethylamineHMDB
ColamineHMDB
ETAHMDB
GlycinolHMDB
HeaHMDB
MEAHMDB
MONOETHANOLAMINEHMDB
b-AminoethanolHMDB
Β-aminoethanolHMDB
b-Aminoethyl alcoholHMDB
Β-aminoethyl alcoholHMDB
b-EthanolamineHMDB
Β-ethanolamineHMDB
b-HydroxyethylamineHMDB
Β-hydroxyethylamineHMDB
2-AminoethanolHMDB
2-EthanolamineHMDB
2-HydroxyethanamineHMDB
Envision conditioner PDD 9020HMDB
EthylolamineHMDB
H-GlycinolHMDB
MonoaethanolaminHMDB
OlamineHMDB
2 AminoethanolHMDB
(3R,4S,5R)-5-[(1R)-1-Carboxy-2,2-difluoro-1-(phosphonooxy)ethoxy]-4-hydroxy-3-(phosphonooxy)cyclohex-1-ene-1-carboxylateHMDB
(1S)-2-[(3-O-b-D-Glucopyranosyl-b-D-galactopyranosyl)oxy]-1-{[(9E)-octadec-9-enoyloxy]methyl}ethyl (10E)-nonadec-10-enoateHMDB
(1S)-2-[(3-O-b-D-Glucopyranosyl-b-D-galactopyranosyl)oxy]-1-{[(9E)-octadec-9-enoyloxy]methyl}ethyl (10E)-nonadec-10-enoic acidHMDB
(1S)-2-[(3-O-beta-D-Glucopyranosyl-beta-D-galactopyranosyl)oxy]-1-{[(9E)-octadec-9-enoyloxy]methyl}ethyl (10E)-nonadec-10-enoic acidHMDB
(1S)-2-[(3-O-Β-D-glucopyranosyl-β-D-galactopyranosyl)oxy]-1-{[(9E)-octadec-9-enoyloxy]methyl}ethyl (10E)-nonadec-10-enoateHMDB
(1S)-2-[(3-O-Β-D-glucopyranosyl-β-D-galactopyranosyl)oxy]-1-{[(9E)-octadec-9-enoyloxy]methyl}ethyl (10E)-nonadec-10-enoic acidHMDB
Chemical FormulaC5H9NO4
Average Molecular Weight147.1293
Monoisotopic Molecular Weight147.053157781
IUPAC Name(2S)-2-aminopentanedioic acid
Traditional NameL-glutamic acid
CAS Registry Number56-86-0
SMILES
N[C@@H](CCC(O)=O)C(O)=O
InChI Identifier
InChI=1S/C5H9NO4/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H,7,8)(H,9,10)/t3-/m0/s1
InChI KeyWHUUTDBJXJRKMK-VKHMYHEASA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as glutamic acid and derivatives. Glutamic acid and derivatives are compounds containing glutamic acid or a derivative thereof resulting from reaction of glutamic acid at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentGlutamic acid and derivatives
Alternative Parents
Substituents
  • Glutamic acid or derivatives
  • Alpha-amino acid
  • L-alpha-amino acid
  • Amino fatty acid
  • Dicarboxylic acid or derivatives
  • Fatty acid
  • Fatty acyl
  • Amino acid
  • Carboxylic acid
  • Organic oxide
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Organopnictogen compound
  • Carbonyl group
  • Organic oxygen compound
  • Amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effect
Disposition
Biological locationRoute of exposureSource
Process
Naturally occurring process