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Record Information
Version4.0
StatusDetected and Quantified
Creation Date2008-10-16 22:33:40 UTC
Update Date2018-05-19 21:51:07 UTC
HMDB IDHMDB0011119
Secondary Accession Numbers
  • HMDB11119
Metabolite Identification
Common NameSelenite
DescriptionThe selenite anion is a selenium oxoanion with the chemical formula SeO32−. A selenite (compound) is a compound that contains this ion. In slightly acid conditions, the hydrogenselenite ion, HSeO3−, is formed; in more acidic conditions selenous acid, H2SeO3, exists. Most selenite salts can be formed by heating the relevant metal oxide with selenium dioxide, e.g.:Na2O + SeO2 → Na2SeO3. Selenite is an inorganic form of selenium which may also be useful in cancer chemotherapy.(Wikipedia).
Structure
Thumb
Synonyms
ValueSource
[seo(OH)2]ChEBI
Selenige saeureChEBI
Selenious acidChEBI
SeleniteMeSH
Acid, seleniousMeSH
Acid, selenousMeSH
Chemical FormulaH2O3Se
Average Molecular Weight128.97
Monoisotopic Molecular Weight129.916915758
IUPAC Nameselenous acid
Traditional Nameselenious acid
CAS Registry Number14124-67-5
SMILES
O[Se](O)=O
InChI Identifier
InChI=1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)
InChI KeyMCAHWIHFGHIESP-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as non-metal selenites. These are inorganic non-metallic compounds containing a selenite as its largest oxoanion.
KingdomChemical entities
Super ClassInorganic compounds
ClassMixed metal/non-metal compounds
Sub ClassOther mixed metal/non-metal oxoanionic compounds
Direct ParentNon-metal selenites
Alternative Parents
Substituents
  • Non-metal selenite
  • Inorganic oxide
Molecular FrameworkNot Available
External Descriptors
Ontology
Disposition

Route of exposure:

Biological location:

Source:

Process

Naturally occurring process:

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-1.3ChemAxon
pKa (Strongest Acidic)1.2ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity19.69 m³·mol⁻¹ChemAxon
Polarizability5.84 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001i-0900000000-0a19b2c40c0bb312f5beView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-0900000000-2d351128f9b2f20dfe09View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-1900000000-05c2bdb35a9b9c97cdb2View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0900000000-325ef2a28e83bf8a1866View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-1900000000-d86c195af2b279d0f220View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-0900000000-86606fe3b82690787969View in MoNA
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.0013 (0.00-0.0063) uMAdult (>18 years old)FemaleNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkSelenous acid
METLIN IDNot Available
PubChem Compound1091
PDB IDNot Available
ChEBI ID26642
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Isoform 1 may possess glutaredoxin activity as well as thioredoxin reductase activity and induces actin and tubulin polymerization, leading to formation of cell membrane protrusions. Isoform 4 enhances the transcriptional activity of estrogen receptors alpha and beta while isoform 5 enhances the transcriptional activity of the beta receptor only. Isoform 5 also mediates cell death induced by a combination of interferon-beta and retinoic acid.
Gene Name:
TXNRD1
Uniprot ID:
Q16881
Molecular weight:
70905.58
Reactions
Hydrogen selenide + NADP + Water → Selenite + NADPH + Hydrogen Iondetails
General function:
Involved in oxidoreductase activity
Specific function:
Maintains thioredoxin in a reduced state. Implicated in the defenses against oxidative stress. May play a role in redox-regulated cell signaling.
Gene Name:
TXNRD2
Uniprot ID:
Q9NNW7
Molecular weight:
56506.275
Reactions
Hydrogen selenide + NADP + Water → Selenite + NADPH + Hydrogen Iondetails
General function:
Involved in oxidoreductase activity
Specific function:
Displays thioredoxin reductase, glutaredoxin and glutathione reductase activities. Catalyzes disulfide bond isomerization. Promotes disulfide bond formation between GPX4 and various sperm proteins and may play a role in sperm maturation by promoting formation of sperm structural components (By similarity).
Gene Name:
TXNRD3
Uniprot ID:
Q86VQ6
Molecular weight:
66600.92
Reactions
Hydrogen selenide + NADP + Water → Selenite + NADPH + Hydrogen Iondetails