Record Information
Version1.0
Creation Date2016-09-30 22:32:45 UTC
Update Date2020-04-22 15:04:10 UTC
BMDB IDBMDB0000557
Secondary Accession Numbers
  • BMDB00557
Metabolite Identification
Common NameL-Alloisoleucine
DescriptionL-Alloisoleucine, also known as threo-L-isoleucine or alle, belongs to the class of organic compounds known as isoleucine and derivatives. Isoleucine and derivatives are compounds containing isoleucine or a derivative thereof resulting from reaction of isoleucine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. L-Alloisoleucine exists as a solid, possibly soluble (in water), and a very strong basic compound (based on its pKa) molecule. L-Alloisoleucine has been found to be associated with several diseases known as eosinophilic esophagitis, short/branched chain acyl-coa dehydrogenase deficiency, and colorectal cancer; also l-alloisoleucine has been linked to the inborn metabolic disorders including maple syrup urine disease.
Structure
Thumb
Synonyms
ValueSource
(2S,3R)-2-Amino-3-methylpentanoic acidChEBI
AlleChEBI
Allo-L-isoleucineChEBI
L(+)-AlloisoleucineChEBI
Threo-3-methyl-L-norvalineChEBI
Threo-L-isoleucineChEBI
(2S,3R)-2-Amino-3-methylpentanoateGenerator
AlloisoleucineHMDB
IsoleucineHMDB
Isoleucine, L isomerHMDB
Isoleucine, L-isomerHMDB
L-IsoleucineHMDB
L-Isomer isoleucineHMDB
(3R)-LS-IsoleucineHMDB
2-Amino-3-methyl-[S-(r*,s*)]-pentanoateHMDB
2-Amino-3-methyl-[S-(r*,s*)]-pentanoic acidHMDB
Allo-isoleucineHMDB
L-Allo-isoleucineHMDB
[S-(R*,s*)]-2-amino-3-methylpentanoateHMDB
[S-(R*,s*)]-2-amino-3-methylpentanoic acidHMDB
Chemical FormulaC6H13NO2
Average Molecular Weight131.1729
Monoisotopic Molecular Weight131.094628665
IUPAC Name(2S,3R)-2-amino-3-methylpentanoic acid
Traditional Nameallo-isoleucine
CAS Registry Number1509-34-8
SMILES
CC[C@@H](C)[C@H](N)C(O)=O
InChI Identifier
InChI=1S/C6H13NO2/c1-3-4(2)5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t4-,5+/m1/s1
InChI KeyAGPKZVBTJJNPAG-UHNVWZDZSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as isoleucine and derivatives. Isoleucine and derivatives are compounds containing isoleucine or a derivative thereof resulting from reaction of isoleucine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentIsoleucine and derivatives
Alternative Parents
Substituents
  • Isoleucine or derivatives
  • Alpha-amino acid
  • L-alpha-amino acid
  • Branched fatty acid
  • Methyl-branched fatty acid
  • Fatty acid
  • Fatty acyl
  • Amino acid
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Organic oxide
  • Organopnictogen compound
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Carbonyl group
  • Organic oxygen compound
  • Amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cytoplasm
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point60 - 64 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility34.4 mg/mL at 25 °CNot Available
LogP-1.7HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP-1.7ALOGPS
logP-1.5ChemAxon
logS-0.06ALOGPS
pKa (Strongest Acidic)2.79ChemAxon
pKa (Strongest Basic)9.59ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity34.09 m³·mol⁻¹ChemAxon
Polarizability14.23 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Milk
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000557
DrugBank IDDB01739
Phenol Explorer Compound IDNot Available
FooDB IDFDB022117
KNApSAcK IDNot Available
Chemspider ID89698
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound99288
PDB IDNot Available
ChEBI ID43433
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Mung D, Li L: Applying quantitative metabolomics based on chemical isotope labeling LC-MS for detecting potential milk adulterant in human milk. Anal Chim Acta. 2018 Feb 25;1001:78-85. doi: 10.1016/j.aca.2017.11.019. Epub 2017 Nov 14. [PubMed:29291809 ]