Showing metabocard for Selenohomocysteine (BMDB0004119)

IdentificationTaxonomyPhysical propertiesPathwaysSpectraConcentrationsLinksReferencesenzymes (2) Show 2 proteinsXML
Record Information
Version1.0
Creation Date2016-09-30 23:08:02 UTC
Update Date2020-05-21 16:28:22 UTC
BMDB IDBMDB0004119
Secondary Accession Numbers
  • BMDB04119
Metabolite Identification
Common NameSelenohomocysteine
DescriptionSelenohomocysteine belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Selenohomocysteine is possibly soluble (in water) and a very strong basic compound (based on its pKa). Selenohomocysteine exists in all living species, ranging from bacteria to humans. Selenohomocysteine participates in a number of enzymatic reactions, within cattle. In particular, L-Serine and selenohomocysteine can be converted into selenocystathionine through its interaction with the enzyme cystathionine beta-synthase. In addition, Selenohomocysteine and adenosine can be biosynthesized from se-adenosylselenohomocysteine through its interaction with the enzyme adenosylhomocysteinase. In cattle, selenohomocysteine is involved in the metabolic pathway called the selenoamino acid metabolism pathway.
Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
ValueSource
2-Amino-4-selanyl-butanoateHMDB
2-Amino-4-selanyl-butanoic acidHMDB
Se-selenocysteineHMDB
Chemical FormulaC4H9NO2Se
Average Molecular Weight182.08
Monoisotopic Molecular Weight182.979850365
IUPAC Name2-amino-4-selanylbutanoic acid
Traditional Name2-amino-4-selanylbutanoic acid
CAS Registry Number29412-93-9
SMILES
NC(CC[SeH])C(O)=O
InChI Identifier
InChI=1S/C4H9NO2Se/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)
InChI KeyRCWCGLALNCIQNM-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon).
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentAlpha amino acids
Alternative Parents
Substituents
  • Alpha-amino acid
  • Fatty acid
  • Amino acid
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Selenol
  • Primary amine
  • Organoselenium compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Primary aliphatic amine
  • Organic oxygen compound
  • Carbonyl group
  • Amine
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-3.1ALOGPS
logP-3.9ChemAxon
logS0.06ALOGPS
pKa (Strongest Acidic)1.41ChemAxon
pKa (Strongest Basic)9.5ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity38.16 m³·mol⁻¹ChemAxon
Polarizability12.78 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
HMDB IDHMDB0004119
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023315
KNApSAcK IDNot Available
Chemspider ID389632
KEGG Compound IDC05698
BioCyc IDSELENOHOMOCYSTEINE
BiGG ID46312
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound440763
PDB IDNot Available
ChEBI IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

Enzyme Details
1. Adenosylhomocysteinase
General function:
Coenzyme transport and metabolism
Specific function:
Adenosylhomocysteine is a competitive inhibitor of S-adenosyl-L-methionine-dependent methyl transferase reactions; therefore adenosylhomocysteinase may play a key role in the control of methylations via regulation of the intracellular concentration of adenosylhomocysteine.
Gene Name:
AHCY
Uniprot ID:
Q3MHL4
Molecular weight:
47638.0
Reactions
Se-Adenosylselenohomocysteine + Water → Selenohomocysteine + Adenosinedetails
Enzyme Details
2. Cystathionine beta-synthase
General function:
Not Available
Specific function:
Not Available
Gene Name:
CBS
Uniprot ID:
F1MEW4
Molecular weight:
62867.0
Reactions
L-Serine + Selenohomocysteine → Selenocystathionine + Waterdetails