Showing metabocard for Cobalamin (LMDB00381)

IdentificationTaxonomyOntologyPhysical propertiesSpectraBiological propertiesConcentrationsLinksReferencesXML
Record Information
Version1.0
Creation Date2016-07-13 19:48:34 UTC
Update Date2016-07-19 23:35:52 UTC
LmdbLMDB00381
Secondary Accession NumbersNone
Metabolite Identification
Common NameCobalamin
DescriptionCobalamin participates in two enzymatic processes in mammalian cells. In the methionine synthase (EC 2.1.1.13) reaction, homocysteine (HCys) is converted to methionine allowing for the "recycling" of 5-methyl-tetrahydrofolate (THF) to N5,10 methylene-THF which is needed for the de novo synthesis of thymidylic acid and ultimately, for DNA formation. Since conversion of N5,10-methylene-THF to N5-methyl-THF is irreversible, cobalamin deficiency "traps" folic acid as N5-methyl-THF. Concurrently, HCys accumulates while methionine decreases, leading to a decrease in S-adenosylmethionine which further limits N5,10-methylene-THF formation by decreasing the synthesis of formyl-THF ("formate starvation"). Decreased methionine and S-adenosylmethionine may limit many methylation reactions including those involving DNA and myelin basic protein. In the methylmalonyl CoA mutase (EC 5.1.99.1) reaction, methylmalonyl CoA, derived from propionic acid synthesized by intestinal bacteria, is converted to succinyl CoA, a precursor for fatty acid and heme synthesis Thus, cobalamin deficiency results in methylmalonic acid (MMA) accumulation. Cobalamin deficiency causes megaloblastic anemia and neurocognitive abnormalities but effects on immune function and bone formation have also been described. Low serum cobalamin levels increase the risk of osteoporosis. Tests for cobalamin deficiency include measurements of 1) total cobalamin; 2) MMA and HCys, as indices of functional cobalamin deficiency; and 3) holotranscobalamin as a measure of the metabolically active fraction of circulating cobalamin. Each approach has significant limitations. Moreover, since the pathogenesis of neurologic dysfunction in cobalamin deficiency remains unclear, these tests may not be reliable markers of neurocognitive impairment. Subtle cobalamin deficiency, defined as elevated metabolite levels usually in asymptomatic patients with low or normal serum cobalamin values, is prevalent in the elderly and has been associated with food cobalamin malabsorption, a disorder characterized by the inability to release vitamin B12 from food or from its binding proteins. Malabsorption is often unrecognized or not investigated. However, because of the potential seriousness of the complications, particularly neuropsychiatric and hematological investigation of all patients who present with vitamin or nutritional deficiency is required. Classic disorders, such as pernicious anemia, are the cause of cobalamin deficiency in only a limited proportion of elderly patients. Epidemiological studies have shown a prevalence of cobalamin deficiency of around 20% in the elderly population of industrialized countries (between 50% and 60%, depending on the definition of cobalamin deficiency used in the study). New routes of cobalamin administration (oral and nasal) are currently being developed, especially the use of oral cobalamin therapy to treat food-cobalamin malabsorption. (PMID: 16814909 , 17822656 ).
Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
ValueSource
alpha-(5,6-Dimethylbenzimidazolyl)cobamideChEBI
CblChEBI
Cobalamin (III)ChEBI
Cobalamin(1+)ChEBI
Cobalamin(III)ChEBI
a-(5,6-Dimethylbenzimidazolyl)cobamideGenerator
Α-(5,6-dimethylbenzimidazolyl)cobamideGenerator
5,6-Dimethyl-1-a-D-ribofuranosyl-1H-benzimidazoleHMDB
5,6-Dimethyl-1-a-D-ribofuranosylbenzimidazoleHMDB
5,6-Dimethyl-1-alpha-delta-ribofuranosyl-1H-benzimidazoleHMDB
5,6-Dimethyl-1-alpha-delta-ribofuranosylbenzimidazoleHMDB
Cob(III)alaminHMDB
CobalamineHMDB
Cobinamide ion(1+) dihydrogen phosphate (ester) inner salt 3'-esterHMDB
Cobinamide ion(1+) dihydrogen phosphate (ester) inner salt 3'-ester with 5,6-dimethyl-1-alpha-delta-ribofuranosyl-1H-benzimidazoleHMDB
HydroxominHMDB
RubiviteHMDB
Rubratope-57HMDB
Rubratope-60HMDB
RuviteHMDB
Vitamin b12HMDB
b 12, VitaminHMDB
b12, VitaminHMDB
CobalaminsHMDB
CyanocobalaminHMDB
EritronHMDB
Vitamin b 12HMDB
Chemical FormulaC62H88CoN13O14P
Average Molecular Weight1329.3478
Monoisotopic Molecular Weight1328.564331295
IUPAC Name(10S,12R,13S,17R,23R,24R,25R,30S,35S,36S,40S,41S,42R,46R)-30,35,40-tris(2-carbamoylethyl)-24,36,41-tris(carbamoylmethyl)-46-hydroxy-12-(hydroxymethyl)-5,6,17,23,28,31,31,36,38,41,42-undecamethyl-15,20-dioxo-11,14,16-trioxa-2lambda5,9,19,26,43lambda5,44lambda5,45lambda5-heptaaza-15lambda5-phospha-1-cobaltadodecacyclo[27.14.1.1^{1,34}.1^{2,9}.1^{10,13}.0^{1,26}.0^{3,8}.0^{23,27}.0^{25,42}.0^{32,44}.0^{39,43}.0^{37,45}]heptatetraconta-2(47),3,5,7,27,29(44),32,34(45),37,39(43)-decaene-2,43,44,45-tetrakis(ylium)-1,1-diuid-15-olate
Traditional Name(10S,12R,13S,17R,23R,24R,25R,30S,35S,36S,40S,41S,42R,46R)-30,35,40-tris(2-carbamoylethyl)-24,36,41-tris(carbamoylmethyl)-46-hydroxy-12-(hydroxymethyl)-5,6,17,23,28,31,31,36,38,41,42-undecamethyl-15,20-dioxo-11,14,16-trioxa-2lambda5,9,19,26,43lambda5,44lambda5,45lambda5-heptaaza-15lambda5-phospha-1-cobaltadodecacyclo[27.14.1.1^{1,34}.1^{2,9}.1^{10,13}.0^{1,26}.0^{3,8}.0^{23,27}.0^{25,42}.0^{32,44}.0^{39,43}.0^{37,45}]heptatetraconta-2(47),3,5,7,27,29(44),32,34(45),37,39(43)-decaene-2,43,44,45-tetrakis(ylium)-1,1-diuid-15-olate
CAS Registry Number13408-78-1
SMILES
[Co+3].CC(CNC(=O)CCC1(C)C(CC(N)=O)C2[N-]\C1=C(C)/C1=N/C(=C\C3=N\C(=C(C)/C4=NC2(C)C(C)(CC(N)=O)C4CCC(N)=O)\C(C)(CC(N)=O)C3CCC(N)=O)/C(C)(C)C1CCC(N)=O)OP([O-])(=O)OC1C(CO)OC(C1O)N1C=NC2=C1C=C(C)C(C)=C2
InChI Identifier
InChI=1S/C62H90N13O14P.Co/c1-29-20-39-40(21-30(29)2)75(28-70-39)57-52(84)53(41(27-76)87-57)89-90(85,86)88-31(3)26-69-49(83)18-19-59(8)37(22-46(66)80)56-62(11)61(10,25-48(68)82)36(14-17-45(65)79)51(74-62)33(5)55-60(9,24-47(67)81)34(12-15-43(63)77)38(71-55)23-42-58(6,7)35(13-16-44(64)78)50(72-42)32(4)54(59)73-56;/h20-21,23,28,31,34-37,41,52-53,56-57,76,84H,12-19,22,24-27H2,1-11H3,(H15,63,64,65,66,67,68,69,71,72,73,74,77,78,79,80,81,82,83,85,86);/q;+3/p-2
InChI KeyNSLAUEAQDBERRV-UHFFFAOYSA-L
Chemical Taxonomy
Description belongs to the class of organic compounds known as cobalamin derivatives. These are organic compounds containing a corrin ring, a cobalt atom, an a nucleotide moiety. Cobalamin Derivatives are actually derived from vitamin B12.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassTetrapyrroles and derivatives
Sub ClassCorrinoids
Direct ParentCobalamin derivatives
Alternative Parents
Substituents
  • Cobalamin
  • Metallotetrapyrrole skeleton
  • 1-ribofuranosylbenzimidazole
  • Pentose phosphate
  • N-glycosyl compound
  • Glycosyl compound
  • Monosaccharide phosphate
  • Pentose monosaccharide
  • Benzimidazole
  • Phosphoethanolamine
  • Dialkyl phosphate
  • Monosaccharide
  • N-substituted imidazole
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Alkyl phosphate
  • Benzenoid
  • Fatty amide
  • Fatty acyl
  • Pyrroline
  • Pyrrolidine
  • Imidazole
  • Azole
  • Tetrahydrofuran
  • Heteroaromatic compound
  • Secondary carboxylic acid amide
  • Secondary alcohol
  • Primary carboxylic acid amide
  • Carboxamide group
  • Ketimine
  • Oxacycle
  • Azacycle
  • Organic transition metal salt
  • Carbene-type 1,3-dipolar compound
  • Carboxylic acid derivative
  • Alcohol
  • Organic nitrogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Imine
  • Primary alcohol
  • Organic salt
  • Organic cobalt salt
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Carbonyl group
  • Organic oxygen compound
  • Organic cation
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP0.61ALOGPS
logP-14ChemAxon
logS-5.9ALOGPS
pKa (Strongest Acidic)1.82ChemAxon
pKa (Strongest Basic)-0.55ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count13ChemAxon
Hydrogen Donor Count9ChemAxon
Polar Surface Area417 ŲChemAxon
Rotatable Bond Count16ChemAxon
Refractivity337.47 m³·mol⁻¹ChemAxon
Polarizability132.05 ųChemAxon
Number of Rings12ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-2031000095-b9bf39827ae83761ccb6Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4j-2393000063-424c175511ddc5e4d2feSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9740000051-7d6903b2dd8881008344Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0059000000-dec49680276dd7d5a080Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0i00-0092000000-2a13d3fd995ffd79ff7fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-004i-3191000000-20e008a7f11bbe916e61Spectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Milk
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
MilkDetected and Quantified0.00712 mg/kgNot AvailableOvine
    • Park, Y. W; Juáre...
 details
MilkDetected and Quantified0.00065 mg/kgNot AvailableCaprine
    • Park, Y. W; Juáre...
 details
DrugBank IDNot Available
HMDB IDHMDB0002174
FooDB IDFDB022886
Phenol Explorer IDNot Available
KNApSAcK IDC00001534
BiGG IDNot Available
BioCyc IDNot Available
METLIN ID6527
PDB IDNot Available
Wikipedia LinkCobalamin
Chemspider ID5256728
ChEBI ID28911
PubChem Compound ID6857388
Kegg Compound IDC05776
YMDB IDYMDB16147
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Solomon LR: Disorders of cobalamin (vitamin B12) metabolism: emerging concepts in pathophysiology, diagnosis and treatment. Blood Rev. 2007 May;21(3):113-30. Epub 2006 Jul 11. [16814909 ]
  2. Andres E, Vidal-Alaball J, Federici L, Loukili NH, Zimmer J, Kaltenbach G: Clinical aspects of cobalamin deficiency in elderly patients. Epidemiology, causes, clinical manifestations, and treatment with special focus on oral cobalamin therapy. Eur J Intern Med. 2007 Oct;18(6):456-62. Epub 2007 Jul 12. [17822656 ]