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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2012-09-06 21:03:04 UTC
Update Date2021-09-14 15:45:52 UTC
HMDB IDHMDB0028941
Secondary Accession Numbers
  • HMDB28941
Metabolite Identification
Common NameLeucyl-Tyrosine
DescriptionLeucyl-Tyrosine is a dipeptide composed of leucine and tyrosine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an 'Expected' metabolite.
Structure
Thumb
Synonyms
ValueSource
L-Leucyl-L-tyrosineHMDB
L-Y dipeptideHMDB
Leu-tyrHMDB
Leucine tyrosine dipeptideHMDB
Leucine-tyrosine dipeptideHMDB
LeucyltyrosineHMDB
LY dipeptideHMDB
Leucyltyrosine, (D-tyr,D-leu)-isomerHMDB
Leucyltyrosine, (L-tyr,D-leu)-isomerHMDB
Leucyltyrosine, (D-tyr,L-leu)-isomerHMDB
2-[(2-Amino-1-hydroxy-4-methylpentylidene)amino]-3-(4-hydroxyphenyl)propanoateHMDB
Chemical FormulaC15H22N2O4
Average Molecular Weight294.3462
Monoisotopic Molecular Weight294.157957202
IUPAC Name2-(2-amino-4-methylpentanamido)-3-(4-hydroxyphenyl)propanoic acid
Traditional Nameleu-tyr
CAS Registry NumberNot Available
SMILES
CC(C)CC(N)C(=O)NC(CC1=CC=C(O)C=C1)C(O)=O
InChI Identifier
InChI=1S/C15H22N2O4/c1-9(2)7-12(16)14(19)17-13(15(20)21)8-10-3-5-11(18)6-4-10/h3-6,9,12-13,18H,7-8,16H2,1-2H3,(H,17,19)(H,20,21)
InChI KeyLHSGPCFBGJHPCY-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as dipeptides. These are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentDipeptides
Alternative Parents
Substituents
  • Alpha-dipeptide
  • Tyrosine or derivatives
  • Phenylalanine or derivatives
  • Leucine or derivatives
  • N-acyl-alpha amino acid or derivatives
  • N-acyl-alpha-amino acid
  • Alpha-amino acid amide
  • 3-phenylpropanoic-acid
  • Alpha-amino acid or derivatives
  • Amphetamine or derivatives
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • N-acyl-amine
  • Fatty acyl
  • Benzenoid
  • Fatty amide
  • Monocyclic benzene moiety
  • Amino acid or derivatives
  • Carboxamide group
  • Amino acid
  • Secondary carboxylic acid amide
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Hydrocarbon derivative
  • Primary aliphatic amine
  • Amine
  • Organic oxygen compound
  • Carbonyl group
  • Organic oxide
  • Organopnictogen compound
  • Organic nitrogen compound
  • Primary amine
  • Organonitrogen compound
  • Organooxygen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-0.77Extrapolated
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothColorectal Cancer details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Colorectal cancer
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Colorectal cancer
details
Associated Disorders and Diseases
Disease References
Colorectal cancer
  1. Brown DG, Rao S, Weir TL, O'Malia J, Bazan M, Brown RJ, Ryan EP: Metabolomics and metabolic pathway networks from human colorectal cancers, adjacent mucosa, and stool. Cancer Metab. 2016 Jun 6;4:11. doi: 10.1186/s40170-016-0151-y. eCollection 2016. [PubMed:27275383 ]
  2. Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
  3. Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB111964
KNApSAcK IDNot Available
Chemspider ID240420
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound273262
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Rajendran VM, Berteloot A, Ishikawa Y, Khan AH, Ramaswamy K: Transport of carnosine by mouse intestinal brush-border membrane vesicles. Biochim Biophys Acta. 1984 Dec 19;778(3):443-8. [PubMed:6439246 ]
  2. Kapitannikov IuV, Iavashev LP, Ginodman LM, Antonov VK: [Mechanism of oxygen exchange in the amide group of substrates during their hydrolysis catalyzed by leucine aminopeptidase and pepsin]. Bioorg Khim. 1983 Feb;9(2):228-31. [PubMed:6435638 ]
  3. Bradford HN, Schmaier AH, Colman RW: Kinetics of inhibition of platelet calpain II by human kininogens. Biochem J. 1990 Aug 15;270(1):83-90. [PubMed:2396995 ]
  4. Fonseca C, Domingues MR, Simoes C, Amado F, Domingues P: Reactivity of Tyr-Leu and Leu-Tyr dipeptides: identification of oxidation products by liquid chromatography-tandem mass spectrometry. J Mass Spectrom. 2009 May;44(5):681-93. doi: 10.1002/jms.1543. [PubMed:19125397 ]
  5. Szyk A, Maurizi MR: Crystal structure at 1.9A of E. coli ClpP with a peptide covalently bound at the active site. J Struct Biol. 2006 Oct;156(1):165-74. Epub 2006 Apr 21. [PubMed:16682229 ]
  6. Waters SP, Noble ER, Dalling MJ: Intracellular Localization of Peptide Hydrolases in Wheat (Triticum aestivum L.) Leaves. Plant Physiol. 1982 Mar;69(3):575-9. [PubMed:16662252 ]