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Identification
YMDB IDYMDB00485
Name2-Methylbutanal
SpeciesSaccharomyces cerevisiae
StrainBaker's yeast
Description(±)-2-Methylbutanal, also known as 2-methylbutyraldehyde, belongs to the class of organic compounds known as short-chain aldehydes. These are an aldehyde with a chain length containing between 2 and 5 carbon atoms (±)-2-Methylbutanal exists in all eukaryotes, ranging from yeast to plants to humans. Based on a literature review a significant number of articles have been published on (±)-2-Methylbutanal.
Structure
Thumb
Synonyms
  • α-Methylbutanal
  • α-Methylbutyraldehyde
  • α-Methylbutyric aldehyde
  • 2-Formylbutane
  • 2-Methyl-1-butanal
  • 2-Methylbutanal
  • 2-Methylbutyraldehyde
  • 2-Methylbutyric aldehyde
  • Acetaldehyde, ethylmethyl-
  • alpha-Methylbutanal
  • alpha-Methylbutyraldehyde
  • alpha-Methylbutyric aldehyde
  • Butanal, 2-methyl-
  • Butyraldehyde, 2-methyl-
  • Methylethylacetaldehyde
  • (+/-)-2-methylbutanal
  • (+/-)-2-methylbutyraldehyde
  • (RS)-2-Methylbutanal
CAS number96-17-3
WeightAverage: 86.1323
Monoisotopic: 86.073164942
InChI KeyBYGQBDHUGHBGMD-UHFFFAOYSA-N
InChIInChI=1S/C5H10O/c1-3-5(2)4-6/h4-5H,3H2,1-2H3
IUPAC Name2-methylbutanal
Traditional IUPAC Name2-methylbutanal
Chemical FormulaC5H10O
SMILES[H]C(=O)C(C)CC
Chemical Taxonomy
Description belongs to the class of organic compounds known as short-chain aldehydes. These are an aldehyde with a chain length containing between 2 and 5 carbon atoms.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentShort-chain aldehydes
Alternative Parents
Substituents
  • Organic oxide
  • Hydrocarbon derivative
  • Short-chain aldehyde
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
StateSolid
Charge0
Melting point91 °C
Experimental Properties
PropertyValueReference
Water SolubilityNot AvailablePhysProp
LogPNot AvailablePhysProp
Predicted Properties
PropertyValueSource
Water Solubility21 g/LALOGPS
logP1.19ALOGPS
logP1.31ChemAxon
logS-0.61ALOGPS
pKa (Strongest Acidic)18.49ChemAxon
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity25.52 m³·mol⁻¹ChemAxon
Polarizability10.14 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations
  • extracellular
  • mitochondrion
  • cytoplasm
Organoleptic Properties
Flavour/OdourSource
AlmondFDB008127
CocoaFDB008127
CoffeeFDB008127
MustyFDB008127
NuttyFDB008127
SMPDB Pathways
Isoleucine degradationPW002491 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG PathwaysNot Available
SMPDB Reactions
2-Methylbutanal + NADH + hydron2-methylbutan-1-ol + NAD
(S)-3-methyl-2-oxovaleric acid + hydron2-Methylbutanal + Carbon dioxide
KEGG Reactions
hydron + (S)-3-methyl-2-oxovaleric acid2-Methylbutanal + Carbon dioxide
2-Methylbutanal + NADH + hydronNAD + 2-methylbutan-1-ol
2-Methylbutanal + NADPH + hydronNADP + 2-methylbutan-1-ol
Concentrations
Intracellular ConcentrationsNot Available
Extracellular ConcentrationsNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-056r-9000000000-04affbdbae7bb9cbfa4eJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-9000000000-390a4b3c076ffaaa9654JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-052r-9000000000-cdf0813b6616fa1c4d43JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000000000-0303b3443c166f727166JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-9000000000-390a4b3c076ffaaa9654JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-052r-9000000000-cdf0813b6616fa1c4d43JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000000000-0303b3443c166f727166JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-9000000000-688dccbda58eb29796c8JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9000000000-f57c47d0ebb97da44ae3JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0aor-9000000000-6b04569d385f51b105d7JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-9000000000-688dccbda58eb29796c8JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9000000000-f57c47d0ebb97da44ae3JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0aor-9000000000-6b04569d385f51b105d7JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-9000000000-2091e44a102d8284a813JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9000000000-193034b07746638b0c34JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-9f7f800cda7556d00abeJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-9000000000-93325cae8d01ceb128b2JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014i-9000000000-602a7ee0f067de1268daJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4l-9000000000-a47f3a51a4640ce02e9fJSpectraViewer
MSMass Spectrum (Electron Ionization)splash10-056u-9000000000-b29f180de83837c2e156JSpectraViewer | MoNA
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
References
References:
  • Herrgard, M. J., Swainston, N., Dobson, P., Dunn, W. B., Arga, K. Y., Arvas, M., Bluthgen, N., Borger, S., Costenoble, R., Heinemann, M., Hucka, M., Le Novere, N., Li, P., Liebermeister, W., Mo, M. L., Oliveira, A. P., Petranovic, D., Pettifer, S., Simeonidis, E., Smallbone, K., Spasic, I., Weichart, D., Brent, R., Broomhead, D. S., Westerhoff, H. V., Kirdar, B., Penttila, M., Klipp, E., Palsson, B. O., Sauer, U., Oliver, S. G., Mendes, P., Nielsen, J., Kell, D. B. (2008). "A consensus yeast metabolic network reconstruction obtained from a community approach to systems biology." Nat Biotechnol 26:1155-1160.18846089
  • Ford, G., Ellis, E. M. (2002). "Characterization of Ypr1p from Saccharomyces cerevisiae as a 2-methylbutyraldehyde reductase." Yeast 19:1087-1096.12210903
  • Leskovac, V., Trivic, S., Pericin, D. (2002). "The three zinc-containing alcohol dehydrogenases from baker's yeast, Saccharomyces cerevisiae." FEMS Yeast Res 2:481-494.12702265
  • Chi, A., Huttenhower, C., Geer, L. Y., Coon, J. J., Syka, J. E., Bai, D. L., Shabanowitz, J., Burke, D. J., Troyanskaya, O. G., Hunt, D. F. (2007). "Analysis of phosphorylation sites on proteins from Saccharomyces cerevisiae by electron transfer dissociation (ETD) mass spectrometry." Proc Natl Acad Sci U S A 104:2193-2198.17287358
  • Vuralhan, Z., Morais, M. A., Tai, S. L., Piper, M. D., Pronk, J. T. (2003). "Identification and characterization of phenylpyruvate decarboxylase genes in Saccharomyces cerevisiae." Appl Environ Microbiol 69:4534-4541.12902239
  • Larroy, C., Pares, X., Biosca, J. A. (2002). "Characterization of a Saccharomyces cerevisiae NADP(H)-dependent alcohol dehydrogenase (ADHVII), a member of the cinnamyl alcohol dehydrogenase family." Eur J Biochem 269:5738-5745.12423374
  • Dickinson, J. R., Salgado, L. E., Hewlins, M. J. (2003). "The catabolism of amino acids to long chain and complex alcohols in Saccharomyces cerevisiae." J Biol Chem 278:8028-8034.12499363
Synthesis Reference:Not Available
External Links:
ResourceLink
CHEBI ID16182
HMDB IDHMDB0031526
Pubchem Compound ID7284
Kegg IDC02223
ChemSpider ID7012
FOODB IDFDB008127
Wikipedia IDNot Available
BioCyc IDNot Available

Enzymes

General function:
Involved in zinc ion binding
Specific function:
An alcohol + NAD(+) = an aldehyde or ketone + NADH
Gene Name:
ADH3
Uniprot ID:
P07246
Molecular weight:
40369.19922
Reactions
An alcohol + NAD(+) → an aldehyde or ketone + NADH.
General function:
Involved in zinc ion binding
Specific function:
Oxidizes long-chain alcohols and, in the presence of glutathione, is able to oxidize formaldehyde. Is responsible for yeast resistance to formaldehyde
Gene Name:
SFA1
Uniprot ID:
P32771
Molecular weight:
41041.69922
Reactions
S-(hydroxymethyl)glutathione + NAD(P)(+) → S-formylglutathione + NAD(P)H.
An alcohol + NAD(+) → an aldehyde or ketone + NADH.
General function:
Involved in magnesium ion binding
Specific function:
Second most abundant of three pyruvate decarboxylases (PDC1, PDC5, PDC6) implicated in the nonoxidative conversion of pyruvate to acetaldehyde and carbon dioxide during alcoholic fermentation. Most of the produced acetaldehyde is subsequently reduced to ethanol, but some is required for cytosolic acetyl-CoA production for biosynthetic pathways. The enzyme is also one of five 2-oxo acid decarboxylases (PDC1, PDC5, PDC6, ARO10, and THI3) able to decarboxylate more complex 2-oxo acids (alpha-keto-acids) than pyruvate, which seem mainly involved in amino acid catabolism. Here the enzyme catalyzes the decarboxylation of amino acids, which, in a first step, have been transaminated to the corresponding 2-oxo acids. In a third step, the resulting aldehydes are reduced to alcohols, collectively referred to as fusel oils or alcohols. Its preferred substrates are the transaminated amino acids valine, isoleucine, phenylalanine, and tryptophan, whereas leucine is no substrate. In a side-reaction the carbanionic intermediate (or active aldehyde) generated by decarboxylation or by activation of an aldehyde can react with an aldehyde via condensation (or carboligation) yielding a 2-hydroxy ketone, collectively called acyloins
Gene Name:
PDC5
Uniprot ID:
P16467
Molecular weight:
61911.60156
Reactions
A 2-oxo acid → an aldehyde + CO(2).
3-(indol-3-yl)pyruvate → 2-(indol-3-yl)acetaldehyde + CO(2).
Phenylpyruvate → phenylacetaldehyde + CO(2).
Pyruvate → Acetaldehyde + CO(2).
A 2-oxo acid + an aldehyde → A 2-hydroxy ketone + CO(2).
An aldehyde + an aldehyde → A 2-hydroxy ketone.
General function:
Involved in magnesium ion binding
Specific function:
Minor of three pyruvate decarboxylases (PDC1, PDC5, PDC6) implicated in the nonoxidative conversion of pyruvate to acetaldehyde and carbon dioxide during alcoholic fermentation. Most of the produced acetaldehyde is subsequently reduced to ethanol, but some is required for cytosolic acetyl-CoA production for biosynthetic pathways. The enzyme is also one of five 2-oxo acid decarboxylases (PDC1, PDC5, PDC6, ARO10, and THI3) able to decarboxylate more complex 2-oxo acids (alpha-keto-acids) than pyruvate, which seem mainly involved in amino acid catabolism. Here the enzyme catalyzes the decarboxylation of amino acids, which, in a first step, have been transaminated to the corresponding 2-oxo acids. In a third step, the resulting aldehydes are reduced to alcohols, collectively referred to as fusel oils or alcohols. Its preferred substrates are the transaminated amino acids valine, isoleucine, phenylalanine, and tryptophan, whereas leucine is no substrate. In a side-reaction the carbanionic intermediate (or active aldehyde) generated by decarboxylation or by activation of an aldehyde can react with an aldehyde via condensation (or carboligation) yielding a 2-hydroxy ketone, collectively called acyloins. The expression level of this protein in the presence of fermentable carbon sources is so low that it can not compensate for the other two pyruvate decarboxylases to sustain fermentation
Gene Name:
PDC6
Uniprot ID:
P26263
Molecular weight:
61579.89844
Reactions
A 2-oxo acid → an aldehyde + CO(2).
3-(indol-3-yl)pyruvate → 2-(indol-3-yl)acetaldehyde + CO(2).
Phenylpyruvate → phenylacetaldehyde + CO(2).
Pyruvate → Acetaldehyde + CO(2).
A 2-oxo acid + an aldehyde → A 2-hydroxy ketone + CO(2).
An aldehyde + an aldehyde → A 2-hydroxy ketone.
General function:
Involved in zinc ion binding
Specific function:
This isozyme preferentially catalyzes the conversion of primary unbranched alcohols to their corresponding aldehydes. Also also shows activity toward secondary alcohols
Gene Name:
ADH1
Uniprot ID:
P00330
Molecular weight:
36849.0
Reactions
An alcohol + NAD(+) → an aldehyde or ketone + NADH.
General function:
Involved in oxidoreductase activity
Specific function:
Reduces acetaldehyde to ethanol during glucose fermentation. Specific for ethanol. Shows drastically reduced activity towards primary alcohols from 4 carbon atoms upward. Isomers of aliphatic alcohol, as well as secondary alcohols and glycerol are not used at all
Gene Name:
ADH4
Uniprot ID:
P10127
Molecular weight:
41141.69922
Reactions
An alcohol + NAD(+) → an aldehyde or ketone + NADH.
General function:
Involved in magnesium ion binding
Specific function:
Major of three pyruvate decarboxylases (PDC1, PDC5, PDC6) implicated in the nonoxidative conversion of pyruvate to acetaldehyde and carbon dioxide during alcoholic fermentation. Most of the produced acetaldehyde is subsequently reduced to ethanol, but some is required for cytosolic acetyl-CoA production for biosynthetic pathways. The enzyme is also one of five 2-oxo acid decarboxylases (PDC1, PDC5, PDC6, ARO10, and THI3) able to decarboxylate more complex 2-oxo acids (alpha-ketoacids) than pyruvate, which seem mainly involved in amino acid catabolism. Here the enzyme catalyzes the decarboxylation of amino acids, which, in a first step, have been transaminated to the corresponding 2-oxo acids. In a third step, the resulting aldehydes are reduced to alcohols, collectively referred to as fusel oils or alcohols. Its preferred substrates are the transaminated amino acids valine, isoleucine, phenylalanine, and tryptophan, whereas leucine is no substrate. In a side-reaction the carbanionic intermediate (or active aldehyde) generated by decarboxylation or by activation of an aldehyde can react with an aldehyde via condensation (or carboligation) yielding a 2-hydroxy ketone, collectively called acyloins
Gene Name:
PDC1
Uniprot ID:
P06169
Molecular weight:
61494.89844
Reactions
A 2-oxo acid → an aldehyde + CO(2).
3-(indol-3-yl)pyruvate → 2-(indol-3-yl)acetaldehyde + CO(2).
Phenylpyruvate → phenylacetaldehyde + CO(2).
Pyruvate → Acetaldehyde + CO(2).
A 2-oxo acid + an aldehyde → A 2-hydroxy ketone + CO(2).
An aldehyde + an aldehyde → A 2-hydroxy ketone.
General function:
Involved in zinc ion binding
Specific function:
An alcohol + NAD(+) = an aldehyde or ketone + NADH
Gene Name:
ADH5
Uniprot ID:
P38113
Molecular weight:
37647.89844
Reactions
An alcohol + NAD(+) → an aldehyde or ketone + NADH.
General function:
Involved in zinc ion binding
Specific function:
This isozyme preferentially catalyzes the conversion of ethanol to acetaldehyde. Acts on a variety of primary unbranched aliphatic alcohols
Gene Name:
ADH2
Uniprot ID:
P00331
Molecular weight:
36731.60156
Reactions
An alcohol + NAD(+) → an aldehyde or ketone + NADH.
General function:
Involved in zinc ion binding
Specific function:
NADP-dependent alcohol dehydrogenase with a broad substrate specificity
Gene Name:
ADH7
Uniprot ID:
P25377
Molecular weight:
39348.19922
Reactions
An alcohol + NADP(+) → an aldehyde + NADPH.
General function:
Involved in enzyme regulator activity
Specific function:
Required for calcium regulation. May regulate calcium accumulation by a non-vacuole organelle. Also regulates the activity of CSH1 and SUR1 during mannosyl phosphorylinositol ceramide synthesis
Gene Name:
CSG2
Uniprot ID:
P35206
Molecular weight:
45441.60156
Reactions
General function:
Involved in magnesium ion binding
Specific function:
One of five 2-oxo acid decarboxylases (PDC1, PDC5, PDC6, ARO10, and THI3) involved in amino acid catabolism. The enzyme catalyzes the decarboxylation of amino acids, which, in a first step, have been transaminated to the corresponding 2-oxo acids (alpha-keto-acids). In a third step, the resulting aldehydes are reduced to alcohols, collectively referred to as fusel oils or alcohols. Its preferred substrates are the transaminated amino acids, phenylalanine, tryptophan, (and probably tyrosine), but also isoleucine, whereas leucine is a low efficiency and valine and pyruvate are no substrates. In analogy to the pyruvate decarboxylases the enzyme may in a side-reaction catalyze condensation (or carboligation) reactions leading to the formation of 2-hydroxy ketone, collectively called acyloins
Gene Name:
ARO10
Uniprot ID:
Q06408
Molecular weight:
71383.79688
Reactions
A 2-oxo acid → an aldehyde + CO(2).
Phenylpyruvate → phenylacetaldehyde + CO(2).
3-(indol-3-yl)pyruvate → 2-(indol-3-yl)acetaldehyde + CO(2).
General function:
Involved in zinc ion binding
Specific function:
NADP-dependent alcohol dehydrogenase with a broad substrate specificity
Gene Name:
ADH6
Uniprot ID:
Q04894
Molecular weight:
39617.30078
Reactions
An alcohol + NADP(+) → an aldehyde + NADPH.
General function:
Involved in oxidoreductase activity
Specific function:
Not Available
Gene Name:
YPR1
Uniprot ID:
Q12458
Molecular weight:
34754.69922
Reactions
General function:
Involved in magnesium ion binding
Specific function:
One of five 2-oxo acid decarboxylases (PDC1, PDC5, PDC6, ARO10, and THI3) involved in amino acid catabolism. The enzyme catalyzes the decarboxylation of amino acids, which, in a first step, have been transaminated to the corresponding 2-oxo acids (alpha-keto-acids). In a third step, the resulting aldehydes are reduced to alcohols, collectively referred to as fusel oils or alcohols. Its preferred substrates are the transaminated amino acids leucine and isoleucine, whereas valine, aromatic amino acids, and pyruvate are no substrates. In analogy to the pyruvate decarboxylases the enzyme may in a side-reaction catalyze condensation (or carboligation) reactions leading to the formation of 2-hydroxy ketone, collectively called acyloins. The enzyme is also positively regulating the thiamine metabolism by a molecular mechanism that may involve thiamine concentration sensing and signal transmission
Gene Name:
THI3
Uniprot ID:
Q07471
Molecular weight:
68365.79688
Reactions
A 2-oxo acid → an aldehyde + CO(2).