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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 10:45:37 UTC
Update Date2021-09-26 23:05:32 UTC
HMDB IDHMDB0252744
Secondary Accession NumbersNone
Metabolite Identification
Common NameGliadins
DescriptionGliadin, also known as alpha gliadin, belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds. Gliadin has been detected, but not quantified in, several different foods, such as breakfast cereal, cereals and cereal products, common wheats (Triticum aestivum), and wheats (Triticum). This could make gliadin a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on Gliadin. This compound has been identified in human blood as reported by (PMID: 31557052 ). Gliadins is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Gliadins is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
alpha GliadinMeSH
alpha-GliadinMeSH
Tyr-pro-GLN-pro-GLNMeSH
alpha-Gliadin (43-47)MeSH
GliadinMeSH
Gliadophorin (43-47)MeSH
Chemical FormulaC29H41N7O9
Average Molecular Weight631.687
Monoisotopic Molecular Weight631.296575928
IUPAC Name2-{[(1-{2-[({1-[2-amino-3-(4-hydroxyphenyl)propanoyl]pyrrolidin-2-yl}(hydroxy)methylidene)amino]-4-(C-hydroxycarbonimidoyl)butanoyl}pyrrolidin-2-yl)(hydroxy)methylidene]amino}-4-(C-hydroxycarbonimidoyl)butanoic acid
Traditional Name2-{[(1-{2-[({1-[2-amino-3-(4-hydroxyphenyl)propanoyl]pyrrolidin-2-yl}(hydroxy)methylidene)amino]-4-(C-hydroxycarbonimidoyl)butanoyl}pyrrolidin-2-yl)(hydroxy)methylidene]amino}-4-(C-hydroxycarbonimidoyl)butanoic acid
CAS Registry NumberNot Available
SMILES
NC(CC1=CC=C(O)C=C1)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(O)=O
InChI Identifier
InChI=1S/C29H41N7O9/c30-18(15-16-5-7-17(37)8-6-16)27(42)35-13-1-3-21(35)25(40)33-19(9-11-23(31)38)28(43)36-14-2-4-22(36)26(41)34-20(29(44)45)10-12-24(32)39/h5-8,18-22,37H,1-4,9-15,30H2,(H2,31,38)(H2,32,39)(H,33,40)(H,34,41)(H,44,45)
InChI KeyHZWWPUTXBJEENE-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentOligopeptides
Alternative Parents
Substituents
  • Alpha-oligopeptide
  • Glutamine or derivatives
  • N-acyl-alpha amino acid or derivatives
  • N-acyl-alpha-amino acid
  • Proline or derivatives
  • Alpha-amino acid amide
  • Alpha-amino acid or derivatives
  • Amphetamine or derivatives
  • Pyrrolidine carboxylic acid or derivatives
  • N-acylpyrrolidine
  • Pyrrolidine-2-carboxamide
  • 1-hydroxy-2-unsubstituted benzenoid
  • Aralkylamine
  • Phenol
  • Fatty amide
  • Fatty acyl
  • Benzenoid
  • Monocyclic benzene moiety
  • Tertiary carboxylic acid amide
  • Pyrrolidine
  • Amino acid or derivatives
  • Carboxamide group
  • Amino acid
  • Secondary carboxylic acid amide
  • Primary carboxylic acid amide
  • Organoheterocyclic compound
  • Azacycle
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Hydrocarbon derivative
  • Primary aliphatic amine
  • Amine
  • Organic oxygen compound
  • Carbonyl group
  • Organic oxide
  • Organonitrogen compound
  • Organooxygen compound
  • Organic nitrogen compound
  • Primary amine
  • Organopnictogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP-1.1ALOGPS
logP-7.7ChemAxon
logS-3.8ALOGPS
pKa (Strongest Acidic)-0.85ChemAxon
pKa (Strongest Basic)13.01ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count14ChemAxon
Hydrogen Donor Count9ChemAxon
Polar Surface Area277.51 ŲChemAxon
Rotatable Bond Count15ChemAxon
Refractivity179.81 m³·mol⁻¹ChemAxon
Polarizability63.83 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+237.50830932474
DeepCCS[M-H]-235.11330932474
DeepCCS[M-2H]-268.10830932474
DeepCCS[M+Na]+243.42130932474
AllCCS[M+H]+235.332859911
AllCCS[M+H-H2O]+234.732859911
AllCCS[M+NH4]+235.832859911
AllCCS[M+Na]+235.932859911
AllCCS[M-H]-230.532859911
AllCCS[M+Na-2H]-233.232859911
AllCCS[M+HCOO]-236.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
GliadinsNC(CC1=CC=C(O)C=C1)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(O)=O4561.7Standard polar33892256
GliadinsNC(CC1=CC=C(O)C=C1)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(O)=O4650.3Standard non polar33892256
GliadinsNC(CC1=CC=C(O)C=C1)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(=O)N1CCCC1C(O)=NC(CCC(O)=N)C(O)=O5895.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_3) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_4) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_5) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_6) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_7) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_8) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_1_9) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_3) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_4) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_5) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_6) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_7) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_8) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_9) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_10) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_11) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_12) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_13) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_14) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_15) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Gliadins GC-MS (TMS_2_16) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 10V, Positive-QTOFsplash10-02a2-0725259000-4395c01738e6191421852016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 20V, Positive-QTOFsplash10-0002-2923110000-524beb5ee45489168c7f2016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 40V, Positive-QTOFsplash10-006t-7920000000-74bd38877e1beb5153142016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 10V, Negative-QTOFsplash10-01q9-0111139000-7445bdb9e44538f35a542016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 20V, Negative-QTOFsplash10-03dl-4885689000-de9c9789636f9834b1c82016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 40V, Negative-QTOFsplash10-0007-9651202000-43e32ada75cf563c11372016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 10V, Positive-QTOFsplash10-00lr-0200109000-358c754b260d7f35f2412021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 20V, Positive-QTOFsplash10-05nk-2900243000-fb836ef8585528e2a28c2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 40V, Positive-QTOFsplash10-00di-9810100000-f5ad48ae5236c3e9f4162021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 10V, Negative-QTOFsplash10-01q9-0000109000-cba5c38cc4a563b730ba2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 20V, Negative-QTOFsplash10-0036-3930314000-e88d3a8eadfe9ca263d32021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gliadins 40V, Negative-QTOFsplash10-0007-6932300000-294a4d25942de61c36942021-10-12Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-10-13Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB012968
KNApSAcK IDNot Available
Chemspider ID15922832
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkGliadin
METLIN IDNot Available
PubChem Compound17787981
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. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]