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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2012-09-06 21:02:57 UTC
Update Date2022-09-22 18:34:22 UTC
HMDB IDHMDB0028911
Secondary Accession Numbers
  • HMDB28911
Metabolite Identification
Common NameIsoleucyl-Leucine
DescriptionIsoleucyl-Leucine is a dipeptide composed of isoleucine and leucine. 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
Data?1582753354
Synonyms
ValueSource
I-L dipeptideHMDB
IL dipeptideHMDB
Ile-leuHMDB
Isoleucine leucine dipeptideHMDB
Isoleucine-leucine dipeptideHMDB
IsoleucylleucineHMDB
L-Isoleucyl-L-leucineHMDB
2-[(2-Amino-1-hydroxy-3-methylpentylidene)amino]-4-methylpentanoateHMDB
Chemical FormulaC12H24N2O3
Average Molecular Weight244.3306
Monoisotopic Molecular Weight244.178692644
IUPAC Name2-(2-amino-3-methylpentanamido)-4-methylpentanoic acid
Traditional Name2-(2-amino-3-methylpentanamido)-4-methylpentanoic acid
CAS Registry NumberNot Available
SMILES
CCC(C)C(N)C(=O)NC(CC(C)C)C(O)=O
InChI Identifier
InChI=1S/C12H24N2O3/c1-5-8(4)10(13)11(15)14-9(12(16)17)6-7(2)3/h7-10H,5-6,13H2,1-4H3,(H,14,15)(H,16,17)
InChI KeyJWBXCSQZLLIOCI-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
  • Leucine or derivatives
  • Isoleucine or derivatives
  • N-acyl-alpha-amino acid
  • N-acyl-alpha amino acid or derivatives
  • Alpha-amino acid amide
  • Alpha-amino acid or derivatives
  • Branched fatty acid
  • Methyl-branched fatty acid
  • N-acyl-amine
  • Fatty amide
  • Fatty acid
  • Fatty acyl
  • Amino acid or derivatives
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Amino acid
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic nitrogen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Organooxygen compound
  • Primary amine
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxide
  • Organopnictogen compound
  • Amine
  • Organic oxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic 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-0.79Extrapolated
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
  • Feces
  • Saliva
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedCancer patients undergoing total body irradiation details
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
UrineDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedCancer patients undergoing total body irradiation 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 IDFDB111940
KNApSAcK IDNot Available
Chemspider ID14526373
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound13817313
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. Verteeg DH, Witter A: Isolation and identification of alpha-aspartyl-serine, alanylphenylalanine and isoleucylleucine from calf brain stem. J Neurochem. 1970 Jan;17(1):41-52. [PubMed:5494038 ]
  2. Signoret N, Rosenkilde MM, Klasse PJ, Schwartz TW, Malim MH, Hoxie JA, Marsh M: Differential regulation of CXCR4 and CCR5 endocytosis. J Cell Sci. 1998 Sep;111 ( Pt 18):2819-30. [PubMed:9718374 ]