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Record Information
Version2.0
Created at2005-11-16 15:48:42 UTC
Updated at2020-11-24 22:13:29 UTC
NP-MRD IDNP0000182
Secondary Accession NumbersNone
Natural Product Identification
Common NameHomocarnosine
DescriptionHomocarnosine is a normal human metabolite, the brain-specific dipeptide of gamma-aminobutyric acid (GABA) and histidine. (PMID 1266573 ). Increased concentration of CSF homocarnosine has been found in familial spastic paraplegia. (PMID 842287 ). Homocarnosinosis (an inherited disorder, OMIM 236130 ) is characterized by an elevated level of the dipeptide homocarnosine (Hca) in the Cerebrospinal fluid (CSF) and the brain and by carnosinuria and serum carnosinase deficiency, and can co-exist with paraplegia, retinitis pigmentosa, and a progressive mental deficiency. (PMID 3736769 ). In glial tumors of human brain the content of homocarnosine has been found to be lower than in brain tissue (PMID 1032224 ), while an increase in content of homocarnosine was observed in brain tissue of animals under experimental trauma of cranium. (PMID 1025883 ).
Structure
Thumb
Synonyms
Chemical FormulaC10H16N4O3
Average Mass240.2590 Da
Monoisotopic Mass240.12224 Da
IUPAC Name(2S)-2-(4-aminobutanamido)-3-(1H-imidazol-4-yl)propanoic acid
Traditional Name(2S)-2-(4-aminobutanamido)-3-(1H-imidazol-4-yl)propanoic acid
CAS Registry Number3650-73-5
SMILES
NCCCC(=O)N[C@@H](CC1=CNC=N1)C(O)=O
InChI Identifier
InChI=1S/C10H16N4O3/c11-3-1-2-9(15)14-8(10(16)17)4-7-5-12-6-13-7/h5-6,8H,1-4,11H2,(H,12,13)(H,14,15)(H,16,17)/t8-/m0/s1
InChI KeyCCLQKVKJOGVQLU-QMMMGPOBSA-N
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of Origin
Chemical Taxonomy
Description Belongs to the class of organic compounds known as hybrid peptides. Hybrid peptides are compounds containing at least two different types of amino acids (alpha, beta, gamma, delta) linked to each other through a peptide bond.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassPeptidomimetics
Sub ClassHybrid peptides
Direct ParentHybrid peptides
Alternative Parents
Substituents
  • Hybrid peptide
  • Histidine or derivatives
  • N-acyl-alpha-amino acid
  • N-acyl-alpha amino acid or derivatives
  • N-acyl-l-alpha-amino acid
  • Gamma amino acid or derivatives
  • Alpha-amino acid or derivatives
  • Imidazolyl carboxylic acid derivative
  • N-acyl-amine
  • Fatty amide
  • Fatty acyl
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Amino acid
  • Amino acid or derivatives
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Carboxylic acid derivative
  • Carboxylic acid
  • Azacycle
  • Organoheterocyclic compound
  • Monocarboxylic acid or derivatives
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Amine
  • Organic nitrogen compound
  • Organic oxide
  • Carbonyl group
  • Primary amine
  • Organooxygen compound
  • Primary aliphatic amine
  • Organopnictogen compound
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility7.37 g/LALOGPS
logP-2.8ALOGPS
logP-3.9ChemAxon
logS-1.5ALOGPS
pKa (Strongest Acidic)3.45ChemAxon
pKa (Strongest Basic)9.99ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area121.1 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity59.75 m³·mol⁻¹ChemAxon
Polarizability24.49 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0000745
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB022217
KNApSAcK IDNot Available
Chemspider ID8418848
KEGG Compound IDC00884
BioCyc IDCPD-12185
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN ID270
PubChem Compound10243361
PDB IDNot Available
ChEBI ID85981
Good Scents IDNot Available
References
General References