Record Information
Version1.0
StatusDetected and Quantified
Creation Date2020-12-10 18:38:07 UTC
Update Date2024-04-30 19:32:27 UTC
Metabolite IDMMDBc0000454
Metabolite Identification
Common Namegamma-Glutamylglutamic acid
Descriptiongamma-Glutamylglutamic acid is a dipeptide composed of gamma-glutamate and glutamic acid. Glutamic acid (Glu), also referred to as glutamate (the anion), is one of the 20 proteinogenic amino acids. It is not among the essential amino acids. Glutamate is a key molecule in cellular metabolism. In humans, dietary proteins are broken down by digestion into amino acids, which serve as metabolic fuel and other functional roles in the body. 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: (1) damage to mitochondria from excessively high intracellular Ca2+ (2) 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 produce 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 (Wikipedia).
Structure
Synonyms
ValueSource
(5-L-Glutamyl)-L-glutamateChEBI
gamma-GlutamylglutamateChEBI
gamma-L-Glu-L-gluChEBI
(5-L-Glutamyl)-L-glutamic acidGenerator
g-GlutamylglutamateGenerator
g-Glutamylglutamic acidGenerator
Γ-glutamylglutamateGenerator
Γ-glutamylglutamic acidGenerator
g-L-Glu-L-gluGenerator
Γ-L-glu-L-gluGenerator
γ-Glu-GluHMDB, Generator
γ-L-Glutamyl-L-glutamic acidHMDB
γ-L-Glutamyl-L-glutamateHMDB
L-γ-Glutamyl-L-glutamic acidHMDB
L-γ-Glutamyl-L-glutamateHMDB
N-γ-Glutamylglutamic acidHMDB
N-γ-GlutamylglutamateHMDB
N-L-γ-Glutamylglutamic acidHMDB
N-L-γ-GlutamylglutamateHMDB
N-L-γ-Glutamyl-L-glutamic acidHMDB
N-L-γ-Glutamyl-L-glutamateHMDB
gamma-Glu-GluHMDB
gamma-L-Glutamyl-L-glutamic acidHMDB
gamma-L-Glutamyl-L-glutamateHMDB, MeSH
L-gamma-Glutamyl-L-glutamic acidHMDB
L-gamma-Glutamyl-L-glutamateHMDB
N-gamma-Glutamylglutamic acidHMDB
N-gamma-GlutamylglutamateHMDB
N-L-gamma-Glutamylglutamic acidHMDB
N-L-gamma-GlutamylglutamateHMDB
N-L-gamma-Glutamyl-L-glutamic acidHMDB
N-L-gamma-Glutamyl-L-glutamateHMDB
gamma-Glutamylglutamic acidHMDB, Generator
N-gamma-L-Glutamyl-L-glutamic acidHMDB
N-γ-L-Glutamyl-L-glutamic acidHMDB
N-γ-L-Glutamyl-L-glutamateHMDB
N-gamma-L-Glutamyl-L-glutamateHMDB
g-Glu-GluGenerator, HMDB
Molecular FormulaC10H16N2O7
Average Mass276.2432
Monoisotopic Mass276.095750876
IUPAC Name(2S)-2-[(4S)-4-amino-4-carboxybutanamido]pentanedioic acid
Traditional Name(2S)-2-[(4S)-4-amino-4-carboxybutanamido]pentanedioic acid
CAS Registry NumberNot Available
SMILES
N[C@@H](CCC(=O)N[C@@H](CCC(O)=O)C(O)=O)C(O)=O
InChI Identifier
InChI=1S/C10H16N2O7/c11-5(9(16)17)1-3-7(13)12-6(10(18)19)2-4-8(14)15/h5-6H,1-4,11H2,(H,12,13)(H,14,15)(H,16,17)(H,18,19)/t5-,6-/m0/s1
InChI KeyOWQDWQKWSLFFFR-WDSKDSINSA-N