gamma-aminobutyric acid
gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 2.41 | 1 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
aminolevulinic acid
Aminolevulinic Acid: A compound produced from succinyl-CoA and GLYCINE as an intermediate in heme synthesis. It is used as a PHOTOCHEMOTHERAPY for actinic KERATOSIS.. 5-aminolevulinic acid : The simplest delta-amino acid in which the hydrogens at the gamma position are replaced by an oxo group. It is metabolised to protoporphyrin IX, a photoactive compound which accumulates in the skin. Used (in the form of the hydrochloride salt)in combination with blue light illumination for the treatment of minimally to moderately thick actinic keratosis of the face or scalp. | 2.01 | 1 | 0 | 4-oxo monocarboxylic acid;
amino acid zwitterion;
delta-amino acid | antineoplastic agent;
dermatologic drug;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
photosensitizing agent;
plant metabolite;
prodrug;
Saccharomyces cerevisiae metabolite |
5-aminovaleric acid
5-aminovaleric acid: from red fox anal secretion; RN given refers to parent cpd. 5-aminopentanoic acid : A delta-amino acid comprising pentanoic acid with an amino substituent at C-5; a methylene homologue of gamma-aminobutyric acid (GABA) that is a weak GABA agonist. | 2.01 | 1 | 0 | amino acid zwitterion;
delta-amino acid;
omega-amino fatty acid | human metabolite |
alanylalanine
alanylalanine: RN given refers to (DL)-isomer | 2.01 | 1 | 0 | dipeptide | |
glycine
[no description available] | 2.03 | 1 | 0 | alpha-amino acid;
amino acid zwitterion;
proteinogenic amino acid;
serine family amino acid | EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor;
fundamental metabolite;
hepatoprotective agent;
micronutrient;
neurotransmitter;
NMDA receptor agonist;
nutraceutical |
serine
Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 2.01 | 1 | 0 | L-alpha-amino acid;
proteinogenic amino acid;
serine family amino acid;
serine zwitterion;
serine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
valine
Valine: A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.. valine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group.. L-valine : The L-enantiomer of valine. | 2.03 | 1 | 0 | L-alpha-amino acid zwitterion;
L-alpha-amino acid;
proteinogenic amino acid;
pyruvate family amino acid;
valine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
glycyl-glycyl-glycine
glycyl-glycyl-glycine : A tripeptide in which three glycine units are linked via peptide bonds in a linear sequence. | 2.03 | 1 | 0 | tripeptide zwitterion;
tripeptide | |
glycylglycine
[no description available] | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | human metabolite |
glycyl-glycyl-glycyl-glycine
[no description available] | 2.03 | 1 | 0 | | |
tyrosyltyrosine
tyrosyltyrosine: RN given refers to all-(L)-isomer. tyrosyltyrosine : A dipeptide comprising tyrosine with a tyrosyl residue attached to the alpha-nitrogen.. Tyr-Tyr : Tyrosyltyrosine in which each tyrosine residue has L-configuration. | 2.03 | 1 | 0 | tyrosyltyrosine | Mycoplasma genitalium metabolite |
leucylleucine
Leu-Leu : A dipeptide formed from two L-leucine residues. | 2.03 | 1 | 0 | dipeptide;
L-aminoacyl-L-amino acid zwitterion | human metabolite;
Mycoplasma genitalium metabolite |
leucyl-alanine
Leu-Ala : A dipeptide composed of L-leucine and L-alanine joined by a peptide linkage. | 2.01 | 1 | 0 | dipeptide | metabolite |
alanylproline
alanylproline: RN given refers to all (L)-isomer | 2.01 | 1 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
phenylalanylphenylalanylamide
[no description available] | 2.03 | 1 | 0 | | |
Trp-Trp
tryptophyltryptophan: an antigelation agent. Trp-Trp : A dipeptide formed from two L-tryptophan residues. | 2.03 | 1 | 0 | dipeptide | Mycoplasma genitalium metabolite |
glycyltryptophan
glycyltryptophan: RN given refers to (L)-isomer. Gly-Trp : A dipeptide formed from glycine and L-tryptophan residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
glycyltyrosine
Gly-Tyr : A dipeptide composed of glycine and L-tyrosine joined by a peptide linkage. | 2.03 | 1 | 0 | dipeptide | metabolite |
glycylleucine
Gly-Leu : A dipeptide composed of glycine and L-leucine joined by a peptide linkage. | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
alanyltyrosine
alanyltyrosine: tyrosine source; RN given refers to (L)-isomer. Ala-Tyr : A dipeptide composed of L-alanine and L-tyrosine joined by a peptide linkage. | 2.42 | 2 | 0 | dipeptide | metabolite |
glycyl-l-phenylalanine
glycylphenylalanine: RN given refers to (DL)-isomer. Gly-Phe : A dipeptide formed from glycine and L-phenylalanine residues. | 2.03 | 1 | 0 | dipeptide zwitterion;
dipeptide | human metabolite;
metabolite |
glycylsarcosine
glycylsarcosine : A dipeptide obtained by formal condensation of the carboxy group of glycine with the amino group of sarcosine. | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | |
alanylphenylalanine
alanylphenylalanine: RN given refers to (L-Ala-L-PheAla)-isomer | 2.03 | 1 | 0 | dipeptide | metabolite |
tryptophylglycine
Trp-Gly : A dipeptide formed from L-tryptophan and glycine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
glycylaspartic acid
glycylaspartic acid: RN given refers to (L)-isomer | 2.42 | 2 | 0 | dipeptide | metabolite |
n-glycylglutamic acid
N-glycylglutamic acid: RN given refers to (L)-isomer. Gly-Glu : A dipeptide formed from glycyl and L-glutamic acid residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
histidylglycine
histidylglycine: RN given refers to all (L)-isomer. His-Gly : A dipeptide formed from L-histidine and glycine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
histidinoalanine
histidinoalanine: cross-linking amino acid in calcified tissue collagen; RN given refers to (L)-isomer | 2.01 | 1 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
glycylleucine
glycylleucine: RN given refers to (L)-isomer | 3.11 | 3 | 0 | | |
valylvaline
valylvaline: RN given refers to (L)-isomer. Val-Val : A dipeptide formed from two L-valine residues. | 2.03 | 1 | 0 | dipeptide | Mycoplasma genitalium metabolite |
glycyl-leucyl-phenylalanine
glycyl-leucyl-phenylalanine: an immunostimulatory peptide; RN given refer to all (L)-isomer | 2.03 | 1 | 0 | oligopeptide | |
lysyllysine
lysyllysine: RN given refers to (L-Lys)-isomer. Lys-Lys : A dipeptide formed from two L-lysine residues. | 2.03 | 1 | 0 | dipeptide | Mycoplasma genitalium metabolite |
alanylglutamic acid
alanylglutamic acid: RN given refers to (L)-isomer. L-alanyl-L-glutamic acid : A dipeptide consisting of L-glutamic acid having an L-alanyl attached to its alpha-amino group | 2.01 | 1 | 0 | dipeptide | |
proline
Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. | 2.01 | 1 | 0 | amino acid zwitterion;
glutamine family amino acid;
L-alpha-amino acid;
proline;
proteinogenic amino acid | algal metabolite;
compatible osmolytes;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
aspartylglycine
Asp-Gly : A dipeptide composed of L-aspartic acid and glycine joined by a peptide linkage. | 2.03 | 1 | 0 | dipeptide | metabolite |
arginylarginine
Arg-Arg : A dipeptide formed from two L-arginine residues. | 2.03 | 1 | 0 | dipeptide | Mycoplasma genitalium metabolite |
prolyl-tyrosine
prolyl-tyrosine: structure given in first source. Pro-Tyr : A dipeptide formed from L-proline and L-tyrosine residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
n-valyltryptophan
N-valyltryptophan: RN given refers to (L)-isomer | 2.03 | 1 | 0 | peptide | |
prolylglutamic acid
Pro-Glu : A dipeptide formed from L-proline and L-glutamic acid residues. | 2.42 | 2 | 0 | dipeptide | metabolite |
cysteinylglycine
cysteinylglycine: RN given refers to (L)-isomer; RN for cpd without isomeric designation not in Chemlne 7/13/83. L-cysteinylglycine : A dipeptide consisting of glycine having an L-cysteinyl attached to its alpha-amino group. It is an intermediate metabolite in glutathione metabolism. | 2.01 | 1 | 0 | dipeptide zwitterion;
dipeptide | Escherichia coli metabolite;
human metabolite;
Saccharomyces cerevisiae metabolite |
glutamyl-glutamic acid
glutamyl-glutamic acid: RN given for (L,L)-isomer. Glu-Glu : A dipeptide composed of two L-glutamic acid units joined by a peptide linkage. | 2.03 | 1 | 0 | dipeptide | Mycoplasma genitalium metabolite |
aspartyl-aspartic acid
aspartyl-aspartic acid: do not confuse with cyclo(Asp-Asp). Asp-Asp : A dipeptide formed from two L-aspartic acid units. | 2.42 | 2 | 0 | dipeptide | Mycoplasma genitalium metabolite |
n-glycylalanine
Gly-Ala : A dipeptide formed from glycine and L-alanine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
glycylproline
Gly-Pro : A dipeptide consisting of L-proline having a glycyl residue attached to its alpha-amino group. | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
glycyllysine
glycyllysine: RN given refers to (L)-isomer. Gly-Lys : A dipeptide formed from glycine and L-lysine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
alpha-chymotrypsin
Chymotrypsin: A serine endopeptidase secreted by the pancreas as its zymogen, CHYMOTRYPSINOGEN and carried in the pancreatic juice to the duodenum where it is activated by TRYPSIN. It selectively cleaves aromatic amino acids on the carboxyl side. | 2.13 | 1 | 0 | | |
seryl-proline
Ser-Pro : A dipeptide formed from L-serine and L-proline residues. | 2.42 | 2 | 0 | dipeptide | metabolite |
alanylalanine
L-alanyl-L-alanine : A dipeptide consisting of two L-alanine units joined by a peptide linkage. | 2.03 | 1 | 0 | dipeptide zwitterion;
dipeptide | Mycoplasma genitalium metabolite |
phenylalanylalanine
phenylalanylalanine: RN given refers to (L)-isomer. Phe-Ala : A dipeptide formed from L-phenylalanine and L-alanine residues. | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
acetylalanylalanine
acetylalanylalanine: RN given refers to (D)-isomer | 2.01 | 1 | 0 | | |
alpha-aspartylalanine
alpha-aspartylalanine: found in pig brain. Asp-Ala : A dipeptide formed from L-alpha-aspartyl and L-valine residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
alanyltyrosine
Tyr-Ala : A dipeptide formed from L-tyrosine and L-alanine residues. | 2.42 | 2 | 0 | dipeptide | metabolite |
prolylglycine
prolylglycine: RN given refers to (L)-isomer. L-prolylglycine : A dipeptide consisting of glycine having an L-prolyl group attached to its alpha-amino nitrogen. | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | |
arginyllysine
Arg-Lys : A dipeptide formed from L-arginyl and L-leucine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
phenylalanylglycine
phenylalanylglycine: RN given refers to (DL)-isomer. Phe-Gly : A dipeptide formed from L-phenylalanine and glycine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
glutamylalanine
Glu-Ala : A dipeptide formed from L-alpha-glutamyl and L-alanine residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
phenylalanylphenylalanine
Phe-Phe : A dipeptide formed from two L-phenylalanine residues. | 2.01 | 1 | 0 | dipeptide;
L-aminoacyl-L-amino acid zwitterion | human blood serum metabolite;
Mycoplasma genitalium metabolite |
histidylhistidine
histidylhistidine: RN given for L-,L-isomer | 2.03 | 1 | 0 | dipeptide | Mycoplasma genitalium metabolite |
phenylalanyl-valine
Val-Phe : A dipeptide formed from L-valine and L-phenylalanine residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
alanylglycine
[no description available] | 2.01 | 1 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
valyltyrosine
valyltyrosine: from sardine muscle hydrolyzate. Val-Tyr : A dipeptide formed from L-valine and L-tyrosine residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
lysylglutamic acid
lysylglutamic acid: a geroprotective agent. Lys-Glu : A dipeptide formed from L-lysine and L-glutamic acid residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
Ala-Lys
Ala-Lys : A dipeptide obtained by formal condensation of the carboxy group of L-alanine with the alpha-amino group of L-lysine. | 2.03 | 1 | 0 | dipeptide | marine metabolite |
valyl-valyl-valine
[no description available] | 2.03 | 1 | 0 | peptide | |
phenylalanylproline
Phe-Pro : A dipeptide formed from L-phenylalanine and L-proline residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
lysylglycine
lysylglycine: structure in first source. Lys-Gly : A dipeptide formed from L-lysine and glycine residues. | 2.03 | 1 | 0 | dipeptide | metabolite |
glycylhistidine
glycylhistidine: RN given refers to (L)-isomer. Gly-His : A dipeptide composed of glycine and L-histidine joined by a peptide linkage. | 2.42 | 2 | 0 | dipeptide zwitterion;
dipeptide | metabolite |
prolylvaline
Val-Pro : A dipeptide formed from L-valine and L-proline residues. | 2.01 | 1 | 0 | dipeptide | metabolite |
prolyl-proline
Pro-Pro : A dipeptide formed from two L-proline residues. | 2.03 | 1 | 0 | dipeptide | human urinary metabolite;
Mycoplasma genitalium metabolite |