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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-06 21:03:13 UTC
Update Date2021-09-14 15:44:18 UTC
HMDB IDHMDB0028976
Secondary Accession Numbers
  • HMDB28976
Metabolite Identification
Common NameMethionyl-Isoleucine
DescriptionMethionyl-Isoleucine is a dipeptide composed of methionine and isoleucine. 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?1582753361
Synonyms
ValueSource
L-Methionyl-L-isoleucineHMDB
m-I dipeptideHMDB
Met-ileHMDB
Methionine isoleucine dipeptideHMDB
Methionine-isoleucine dipeptideHMDB
MethionylisoleucineHMDB
MI dipeptideHMDB
2-{[2-amino-1-hydroxy-4-(methylsulfanyl)butylidene]amino}-3-methylpentanoateHMDB
2-{[2-amino-1-hydroxy-4-(methylsulphanyl)butylidene]amino}-3-methylpentanoateHMDB
2-{[2-amino-1-hydroxy-4-(methylsulphanyl)butylidene]amino}-3-methylpentanoic acidHMDB
Chemical FormulaC11H22N2O3S
Average Molecular Weight262.369
Monoisotopic Molecular Weight262.13511327
IUPAC Name2-[2-amino-4-(methylsulfanyl)butanamido]-3-methylpentanoic acid
Traditional Name2-[2-amino-4-(methylsulfanyl)butanamido]-3-methylpentanoic acid
CAS Registry NumberNot Available
SMILES
CCC(C)C(NC(=O)C(N)CCSC)C(O)=O
InChI Identifier
InChI=1S/C11H22N2O3S/c1-4-7(2)9(11(15)16)13-10(14)8(12)5-6-17-3/h7-9H,4-6,12H2,1-3H3,(H,13,14)(H,15,16)
InChI KeyOGGRSJFVXREKOR-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
  • Isoleucine 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
  • Branched fatty acid
  • Methyl-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-1.4Extrapolated
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility1.34 g/LALOGPS
logP-0.27ALOGPS
logP-1.4ChemAxon
logS-2.3ALOGPS
pKa (Strongest Acidic)3.97ChemAxon
pKa (Strongest Basic)8.42ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area92.42 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity68.48 m³·mol⁻¹ChemAxon
Polarizability28.76 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]+160.60431661259
DarkChem[M-H]-156.631661259
DeepCCS[M+H]+160.58330932474
DeepCCS[M-H]-157.15330932474
DeepCCS[M-2H]-193.34230932474
DeepCCS[M+Na]+169.20830932474
AllCCS[M+H]+161.632859911
AllCCS[M+H-H2O]+158.632859911
AllCCS[M+NH4]+164.432859911
AllCCS[M+Na]+165.232859911
AllCCS[M-H]-161.332859911
AllCCS[M+Na-2H]-162.432859911
AllCCS[M+HCOO]-163.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Methionyl-IsoleucineCCC(C)C(NC(=O)C(N)CCSC)C(O)=O3059.8Standard polar33892256
Methionyl-IsoleucineCCC(C)C(NC(=O)C(N)CCSC)C(O)=O2037.4Standard non polar33892256
Methionyl-IsoleucineCCC(C)C(NC(=O)C(N)CCSC)C(O)=O2155.8Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Methionyl-Isoleucine,1TMS,isomer #1CCC(C)C(NC(=O)C(N)CCSC)C(=O)O[Si](C)(C)C2123.2Semi standard non polar33892256
Methionyl-Isoleucine,1TMS,isomer #2CCC(C)C(NC(=O)C(CCSC)N[Si](C)(C)C)C(=O)O2156.8Semi standard non polar33892256
Methionyl-Isoleucine,1TMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(N)CCSC)[Si](C)(C)C2090.1Semi standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #1CCC(C)C(NC(=O)C(CCSC)N[Si](C)(C)C)C(=O)O[Si](C)(C)C2169.2Semi standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #1CCC(C)C(NC(=O)C(CCSC)N[Si](C)(C)C)C(=O)O[Si](C)(C)C2112.9Standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #2CCC(C)C(C(=O)O[Si](C)(C)C)N(C(=O)C(N)CCSC)[Si](C)(C)C2099.2Semi standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #2CCC(C)C(C(=O)O[Si](C)(C)C)N(C(=O)C(N)CCSC)[Si](C)(C)C2115.2Standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N[Si](C)(C)C)[Si](C)(C)C2167.5Semi standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N[Si](C)(C)C)[Si](C)(C)C2123.7Standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #4CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O2303.7Semi standard non polar33892256
Methionyl-Isoleucine,2TMS,isomer #4CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O2169.5Standard non polar33892256
Methionyl-Isoleucine,3TMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C)N(C(=O)C(CCSC)N[Si](C)(C)C)[Si](C)(C)C2175.5Semi standard non polar33892256
Methionyl-Isoleucine,3TMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C)N(C(=O)C(CCSC)N[Si](C)(C)C)[Si](C)(C)C2195.3Standard non polar33892256
Methionyl-Isoleucine,3TMS,isomer #2CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C2294.6Semi standard non polar33892256
Methionyl-Isoleucine,3TMS,isomer #2CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)C(=O)O[Si](C)(C)C2251.5Standard non polar33892256
Methionyl-Isoleucine,3TMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2326.3Semi standard non polar33892256
Methionyl-Isoleucine,3TMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2259.7Standard non polar33892256
Methionyl-Isoleucine,4TMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C)N(C(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2344.2Semi standard non polar33892256
Methionyl-Isoleucine,4TMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C)N(C(=O)C(CCSC)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C2325.9Standard non polar33892256
Methionyl-Isoleucine,1TBDMS,isomer #1CCC(C)C(NC(=O)C(N)CCSC)C(=O)O[Si](C)(C)C(C)(C)C2381.8Semi standard non polar33892256
Methionyl-Isoleucine,1TBDMS,isomer #2CCC(C)C(NC(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)C(=O)O2402.3Semi standard non polar33892256
Methionyl-Isoleucine,1TBDMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(N)CCSC)[Si](C)(C)C(C)(C)C2326.8Semi standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #1CCC(C)C(NC(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2644.0Semi standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #1CCC(C)C(NC(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2514.5Standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #2CCC(C)C(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(N)CCSC)[Si](C)(C)C(C)(C)C2577.2Semi standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #2CCC(C)C(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(N)CCSC)[Si](C)(C)C(C)(C)C2522.6Standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2641.9Semi standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2503.6Standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #4CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2762.4Semi standard non polar33892256
Methionyl-Isoleucine,2TBDMS,isomer #4CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2555.6Standard non polar33892256
Methionyl-Isoleucine,3TBDMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2849.5Semi standard non polar33892256
Methionyl-Isoleucine,3TBDMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CCSC)N[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2751.2Standard non polar33892256
Methionyl-Isoleucine,3TBDMS,isomer #2CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2975.7Semi standard non polar33892256
Methionyl-Isoleucine,3TBDMS,isomer #2CCC(C)C(NC(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2788.0Standard non polar33892256
Methionyl-Isoleucine,3TBDMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2981.1Semi standard non polar33892256
Methionyl-Isoleucine,3TBDMS,isomer #3CCC(C)C(C(=O)O)N(C(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2778.6Standard non polar33892256
Methionyl-Isoleucine,4TBDMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3213.6Semi standard non polar33892256
Methionyl-Isoleucine,4TBDMS,isomer #1CCC(C)C(C(=O)O[Si](C)(C)C(C)(C)C)N(C(=O)C(CCSC)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3019.7Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Methionyl-Isoleucine GC-MS (Non-derivatized) - 70eV, Positivesplash10-0udi-6920000000-8e59c2cbfb931bcae0d32017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Methionyl-Isoleucine GC-MS (1 TMS) - 70eV, Positivesplash10-0udi-7911000000-3b559886b5cf724e32b62017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Methionyl-Isoleucine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Methionyl-Isoleucine 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 - Methionyl-Isoleucine 10V, Positive-QTOFsplash10-0j5a-1490000000-14b894882a07b29cc9122017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 20V, Positive-QTOFsplash10-0f79-9630000000-7434d3b15b8e64783da72017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 40V, Positive-QTOFsplash10-0btl-9100000000-fb7143e44dc12e6f47002017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 10V, Negative-QTOFsplash10-03dj-4090000000-c5c5ae3869b3d8d41cf52017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 20V, Negative-QTOFsplash10-0002-9220000000-174ecfe89e36085bcd612017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 40V, Negative-QTOFsplash10-0002-9100000000-dd7f2b49973755669b092017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 10V, Negative-QTOFsplash10-03dl-0090000000-b271aa5045db658f31d42021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 20V, Negative-QTOFsplash10-000t-9710000000-52c947b16ab2d2cfbf082021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 40V, Negative-QTOFsplash10-0002-9100000000-ae8866c3890200a700312021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 10V, Positive-QTOFsplash10-03di-0390000000-9876b98b16262fe0851d2021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 20V, Positive-QTOFsplash10-0il0-3930000000-4d4d894ee633dd6de4352021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Methionyl-Isoleucine 40V, Positive-QTOFsplash10-114i-9400000000-e350dff29db1c0f5bbbc2021-09-25Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB111997
KNApSAcK IDNot Available
Chemspider ID16568350
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound18218228
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 ReferencesNot Available