Hmdb loader
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2012-09-06 21:03:03 UTC
Update Date2021-09-14 15:46:12 UTC
HMDB IDHMDB0028935
Secondary Accession Numbers
  • HMDB28935
Metabolite Identification
Common NameLeucyl-Methionine
DescriptionLeucyl-Methionine is a dipeptide composed of leucine and methionine. 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?1582753357
Synonyms
ValueSource
L-Leucyl-L-methionineHMDB
L-m DipeptideHMDB
Leu-metHMDB
Leucine methionine dipeptideHMDB
Leucine-methionine dipeptideHMDB
LeucylmethionineHMDB
LM DipeptideHMDB
2-[(2-Amino-1-hydroxy-4-methylpentylidene)amino]-4-(methylsulfanyl)butanoateHMDB
2-[(2-Amino-1-hydroxy-4-methylpentylidene)amino]-4-(methylsulphanyl)butanoateHMDB
2-[(2-Amino-1-hydroxy-4-methylpentylidene)amino]-4-(methylsulphanyl)butanoic acidHMDB
Chemical FormulaC11H22N2O3S
Average Molecular Weight262.369
Monoisotopic Molecular Weight262.13511327
IUPAC Name2-(2-amino-4-methylpentanamido)-4-(methylsulfanyl)butanoic acid
Traditional Nameleu-met
CAS Registry NumberNot Available
SMILES
CSCCC(NC(=O)C(N)CC(C)C)C(O)=O
InChI Identifier
InChI=1S/C11H22N2O3S/c1-7(2)6-8(12)10(14)13-9(11(15)16)4-5-17-3/h7-9H,4-6,12H2,1-3H3,(H,13,14)(H,15,16)
InChI KeyNTISAKGPIGTIJJ-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
  • Methionine or derivatives
  • N-acyl-alpha amino acid or derivatives
  • N-acyl-alpha-amino acid
  • Alpha-amino acid amide
  • Alpha-amino acid or derivatives
  • Thia fatty acid
  • Branched fatty acid
  • Fatty acyl
  • Fatty acid
  • Fatty amide
  • N-acyl-amine
  • Secondary carboxylic acid amide
  • Amino acid or derivatives
  • Amino acid
  • Carboxamide group
  • Carboxylic acid
  • Dialkylthioether
  • Monocarboxylic acid or derivatives
  • Sulfenyl compound
  • Thioether
  • Amine
  • Organic oxygen compound
  • Primary aliphatic amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxide
  • Organopnictogen compound
  • Primary amine
  • Organonitrogen compound
  • Organooxygen compound
  • Organosulfur 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-1.47Extrapolated
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility1.22 g/LALOGPS
logP-0.3ALOGPS
logP-1.5ChemAxon
logS-2.3ALOGPS
pKa (Strongest Acidic)3.98ChemAxon
pKa (Strongest Basic)8.43ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area92.42 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity68.56 m³·mol⁻¹ChemAxon
Polarizability28.65 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+159.96531661259
DarkChem[M-H]-160.09631661259
DeepCCS[M+H]+162.89530932474
DeepCCS[M-H]-159.39530932474
DeepCCS[M-2H]-195.46630932474
DeepCCS[M+Na]+171.7130932474
AllCCS[M+H]+161.732859911
AllCCS[M+H-H2O]+158.732859911
AllCCS[M+NH4]+164.432859911
AllCCS[M+Na]+165.232859911
AllCCS[M-H]-161.332859911
AllCCS[M+Na-2H]-162.432859911
AllCCS[M+HCOO]-163.732859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Leucyl-MethionineCSCCC(NC(=O)C(N)CC(C)C)C(O)=O3010.1Standard polar33892256
Leucyl-MethionineCSCCC(NC(=O)C(N)CC(C)C)C(O)=O1986.4Standard non polar33892256
Leucyl-MethionineCSCCC(NC(=O)C(N)CC(C)C)C(O)=O2134.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Leucyl-Methionine,1TMS,isomer #1CSCCC(NC(=O)C(N)CC(C)C)C(=O)O[Si](C)(C)C2101.5Semi standard non polar33892256
Leucyl-Methionine,1TMS,isomer #2CSCCC(NC(=O)C(CC(C)C)N[Si](C)(C)C)C(=O)O2139.9Semi standard non polar33892256
Leucyl-Methionine,1TMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(N)CC(C)C)[Si](C)(C)C2074.0Semi standard non polar33892256
Leucyl-Methionine,2TMS,isomer #1CSCCC(NC(=O)C(CC(C)C)N[Si](C)(C)C)C(=O)O[Si](C)(C)C2152.6Semi standard non polar33892256
Leucyl-Methionine,2TMS,isomer #1CSCCC(NC(=O)C(CC(C)C)N[Si](C)(C)C)C(=O)O[Si](C)(C)C2101.1Standard non polar33892256
Leucyl-Methionine,2TMS,isomer #2CSCCC(C(=O)O[Si](C)(C)C)N(C(=O)C(N)CC(C)C)[Si](C)(C)C2072.1Semi standard non polar33892256
Leucyl-Methionine,2TMS,isomer #2CSCCC(C(=O)O[Si](C)(C)C)N(C(=O)C(N)CC(C)C)[Si](C)(C)C2123.9Standard non polar33892256
Leucyl-Methionine,2TMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N[Si](C)(C)C)[Si](C)(C)C2152.0Semi standard non polar33892256
Leucyl-Methionine,2TMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N[Si](C)(C)C)[Si](C)(C)C2140.1Standard non polar33892256
Leucyl-Methionine,2TMS,isomer #4CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O2309.4Semi standard non polar33892256
Leucyl-Methionine,2TMS,isomer #4CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O2194.9Standard non polar33892256
Leucyl-Methionine,3TMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C)N(C(=O)C(CC(C)C)N[Si](C)(C)C)[Si](C)(C)C2138.1Semi standard non polar33892256
Leucyl-Methionine,3TMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C)N(C(=O)C(CC(C)C)N[Si](C)(C)C)[Si](C)(C)C2199.3Standard non polar33892256
Leucyl-Methionine,3TMS,isomer #2CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C2269.3Semi standard non polar33892256
Leucyl-Methionine,3TMS,isomer #2CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C2256.7Standard non polar33892256
Leucyl-Methionine,3TMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2306.4Semi standard non polar33892256
Leucyl-Methionine,3TMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2284.2Standard non polar33892256
Leucyl-Methionine,4TMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C)N(C(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2305.8Semi standard non polar33892256
Leucyl-Methionine,4TMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C)N(C(=O)C(CC(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2350.9Standard non polar33892256
Leucyl-Methionine,1TBDMS,isomer #1CSCCC(NC(=O)C(N)CC(C)C)C(=O)O[Si](C)(C)C(C)(C)C2359.4Semi standard non polar33892256
Leucyl-Methionine,1TBDMS,isomer #2CSCCC(NC(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)C(=O)O2376.2Semi standard non polar33892256
Leucyl-Methionine,1TBDMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(N)CC(C)C)[Si](C)(C)C(C)(C)C2314.7Semi standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #1CSCCC(NC(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2627.9Semi standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #1CSCCC(NC(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2504.1Standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #2CSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(N)CC(C)C)[Si](C)(C)C(C)(C)C2563.4Semi standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #2CSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(N)CC(C)C)[Si](C)(C)C(C)(C)C2513.4Standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2623.9Semi standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2521.1Standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #4CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2759.0Semi standard non polar33892256
Leucyl-Methionine,2TBDMS,isomer #4CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2578.4Standard non polar33892256
Leucyl-Methionine,3TBDMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2824.1Semi standard non polar33892256
Leucyl-Methionine,3TBDMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2755.4Standard non polar33892256
Leucyl-Methionine,3TBDMS,isomer #2CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2976.0Semi standard non polar33892256
Leucyl-Methionine,3TBDMS,isomer #2CSCCC(NC(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2805.2Standard non polar33892256
Leucyl-Methionine,3TBDMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2989.4Semi standard non polar33892256
Leucyl-Methionine,3TBDMS,isomer #3CSCCC(C(=O)O)N(C(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2803.2Standard non polar33892256
Leucyl-Methionine,4TBDMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3209.6Semi standard non polar33892256
Leucyl-Methionine,4TBDMS,isomer #1CSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3040.5Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Leucyl-Methionine GC-MS (Non-derivatized) - 70eV, Positivesplash10-01p9-9220000000-869c379e5b1d329717cb2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Leucyl-Methionine GC-MS (1 TMS) - 70eV, Positivesplash10-000i-9010000000-e694e4321acd417e4b992017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Leucyl-Methionine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 10V, Positive-QTOFsplash10-03ds-4290000000-db2a7805384af8462de52017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 20V, Positive-QTOFsplash10-0gbi-9520000000-cdccb8aa4c48f380f2482017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 40V, Positive-QTOFsplash10-0ap0-9100000000-af36991a20908f63f7692017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 10V, Negative-QTOFsplash10-03dj-5090000000-6a91b87a358180e959fb2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 20V, Negative-QTOFsplash10-0002-9220000000-2162a7eea0e6330b893c2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 40V, Negative-QTOFsplash10-0002-9100000000-9cb43b62c45ac67d66ba2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 10V, Positive-QTOFsplash10-0ik9-1790000000-f3d115cc7770643a9bcb2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 20V, Positive-QTOFsplash10-0w2i-5900000000-d49b075fe390e08eb9ff2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 40V, Positive-QTOFsplash10-03dr-9100000000-a0a991ab9cc224a2479e2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 10V, Negative-QTOFsplash10-03di-0090000000-24254e964bad33a1cbcd2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 20V, Negative-QTOFsplash10-0002-9210000000-9c0920b07d7347a671f82021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Leucyl-Methionine 40V, Negative-QTOFsplash10-0002-9000000000-e1d92d2a30bee517d7542021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothColorectal 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 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB111962
KNApSAcK IDNot Available
Chemspider ID105706
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound118276
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. McKnight AT, Maguire JJ, Elliott NJ, Fletcher AE, Foster AC, Tridgett R, Williams BJ, Longmore J, Iversen LL: Pharmacological specificity of novel, synthetic, cyclic peptides as antagonists at tachykinin receptors. Br J Pharmacol. 1991 Oct;104(2):355-60. [PubMed:1665732 ]