| Record Information |
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| Version | 2.0 |
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| Created at | 2022-03-17 19:18:44 UTC |
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| Updated at | 2022-03-17 19:18:44 UTC |
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| NP-MRD ID | NP0045368 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | Isoalliin |
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| Description | Isoalliin 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). The process involves two stages: Elimination of 2-propenesulfenic acid from the amino acid unit (with α-aminoacrylic acid as a byproduct), and then condensation of two of the sulfenic acid molecules. Isoalliin is a very strong basic compound (based on its pKa). Outside of the human body, Isoalliin has been detected, but not quantified in, several different foods, such as cloudberries, persian limes, cloud ear fungus, caraway, and japanese walnuts. This could make isoalliin a potential biomarker for the consumption of these foods. Alliinase is responsible for catalyzing chemical reactions that produce the volatile chemicals that give these foods their flavors, odors, and tear-inducing properties. There are a range of similar enzymes that can react with the cysteine-derived sulfoxides present in different species. The PDB accession codes are 1LK9, 2HOR, and 2HOX. The systematic name of this enzyme class is S-alkyl-L-cysteine S-oxide alkyl-sulfenate-lyase (2-aminoacrylate-forming). Isoalliin is found in Allium ampeloprasum. In onions, an isomer of alliin, isoalliin, is converted to 1-propenesulfenic acid. |
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| Structure | InChI=1S/C6H11NO3S/c1-2-3-11(10)4-5(7)6(8)9/h2-3,5H,4,7H2,1H3,(H,8,9)/b3-2- |
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| Synonyms | | Value | Source |
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| 3-(1-Propenylsulfinyl)alanine, 9ci | HMDB | | S-(1-Propenyl)cysteine sulfoxide | HMDB | | S-[(e)-Prop-1-enyl]-L-cysteine S-oxide | HMDB | | 2-Amino-3-[(1Z)-prop-1-ene-1-sulfinyl]propanoate | Generator | | 2-Amino-3-[(1Z)-prop-1-ene-1-sulphinyl]propanoate | Generator | | 2-Amino-3-[(1Z)-prop-1-ene-1-sulphinyl]propanoic acid | Generator | | S-(2-Propenyl)cysteine sulfoxide | MeSH | | Isoalliin | MeSH | | Alliin | MeSH | | Alliin, (L-ala)-(R)-isomer | MeSH | | Alliin, (L-ala)-isomer | MeSH | | PCSO | MeSH | | S-Allylcysteine sulfoxide | MeSH | | Alliin, (L-ala)-(S)-isomer | MeSH |
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| Chemical Formula | C6H11NO3S |
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| Average Mass | 177.2210 Da |
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| Monoisotopic Mass | 177.04596 Da |
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| IUPAC Name | 2-amino-3-[(1Z)-prop-1-ene-1-sulfinyl]propanoic acid |
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| Traditional Name | 2-amino-3-[(1Z)-prop-1-ene-1-sulfinyl]propanoic acid |
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| CAS Registry Number | 23315-20-0 |
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| SMILES | C\C=C/S(=O)CC(N)C(O)=O |
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| InChI Identifier | InChI=1S/C6H11NO3S/c1-2-3-11(10)4-5(7)6(8)9/h2-3,5H,4,7H2,1H3,(H,8,9)/b3-2- |
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| InChI Key | OKYHUOHBRKWCQJ-IHWYPQMZSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Chemical Shift Submissions |
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| Not Available | | Species |
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| Species of Origin | | Species Name | Source | Reference |
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| Allium ampeloprasum | LOTUS Database | | | Allium cepa | FooDB | - Shmuel Yannai Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients. Chap...
| | Allium fistulosum | FooDB | - Shmuel Yannai Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients. Chap...
| | Allium sativum | FooDB | |
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| Chemical Taxonomy |
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| 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). |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Carboxylic acids and derivatives |
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| Sub Class | Amino acids, peptides, and analogues |
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| Direct Parent | Alpha amino acids |
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| Alternative Parents | |
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| Substituents | - Alpha-amino acid
- Sulfoxide
- Amino acid
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Sulfinyl compound
- Organic nitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Primary amine
- Organosulfur compound
- Organooxygen compound
- Organonitrogen compound
- Organopnictogen compound
- Primary aliphatic amine
- Organic oxygen compound
- Carbonyl group
- Amine
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Predicted Properties | |
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