| Record Information |
|---|
| Version | 2.0 |
|---|
| Created at | 2022-09-09 21:16:50 UTC |
|---|
| Updated at | 2022-09-09 21:16:50 UTC |
|---|
| NP-MRD ID | NP0290545 |
|---|
| Secondary Accession Numbers | None |
|---|
| Natural Product Identification |
|---|
| Common Name | (2s)-2-amino-4-(ethyl-c-hydroxycarbonimidoyl)butanoic acid |
|---|
| Description | L-Theanine, also known as suntheanine, belongs to the class of organic compounds known as glutamine and derivatives. Glutamine and derivatives are compounds containing glutamine or a derivative thereof resulting from reaction of glutamine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. L-Theanine is a very strong basic compound (based on its pKa). L-Theanine exists in all living organisms, ranging from bacteria to humans. (2s)-2-amino-4-(ethyl-c-hydroxycarbonimidoyl)butanoic acid is found in Camellia japonica, Camellia sinensis, Homo sapiens and Trypanosoma brucei. (2s)-2-amino-4-(ethyl-c-hydroxycarbonimidoyl)butanoic acid was first documented in 2010 (PMID: 20416364). Theanine is under investigation in clinical trial NCT00291070 (Effects of L-Theanine in Boys With ADHD) (PMID: 23096008) (PMID: 23097345) (PMID: 23395732) (PMID: 24304633). |
|---|
| Structure | [H][C@](N)(CCC(O)=NCC)C(O)=O InChI=1S/C7H14N2O3/c1-2-9-6(10)4-3-5(8)7(11)12/h5H,2-4,8H2,1H3,(H,9,10)(H,11,12)/t5-/m0/s1 |
|---|
| Synonyms | | Value | Source |
|---|
| N5-Ethyl-L-glutamine | ChEBI | | gamma-Glutamylethylamide | HMDB | | Theanine, (D)-isomer | HMDB | | L-Glutamic acid-gamma-ethylamide | HMDB | | Theanine, (DL)-isomer | HMDB | | delta-Glutamylethylamide | HMDB | | Theanine, (L)-isomer | HMDB | | (+)-Theanine | HMDB | | L-gamma-Glutamylethylamide | HMDB | | L-Γ-glutamylethylamide | HMDB | | N-gamma-Ethyl-L-glutamine | HMDB | | N-Γ-ethyl-L-glutamine | HMDB | | Nγ-ethyl-L-glutamine | HMDB | | Suntheanine | HMDB | | Theanin | HMDB | | N(5)-Ethyl-L-glutamine | HMDB | | Theanine | HMDB | | L-Theanine | ChEBI |
|
|---|
| Chemical Formula | C7H14N2O3 |
|---|
| Average Mass | 174.1977 Da |
|---|
| Monoisotopic Mass | 174.10044 Da |
|---|
| IUPAC Name | (2S)-2-amino-4-(ethylcarbamoyl)butanoic acid |
|---|
| Traditional Name | theanine |
|---|
| CAS Registry Number | Not Available |
|---|
| SMILES | [H][C@](N)(CCC(O)=NCC)C(O)=O |
|---|
| InChI Identifier | InChI=1S/C7H14N2O3/c1-2-9-6(10)4-3-5(8)7(11)12/h5H,2-4,8H2,1H3,(H,9,10)(H,11,12)/t5-/m0/s1 |
|---|
| InChI Key | DATAGRPVKZEWHA-YFKPBYRVSA-N |
|---|
| Experimental Spectra |
|---|
|
| Not Available | | Predicted Spectra |
|---|
|
| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
|---|
| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Chemical Shift Submissions |
|---|
|
| Not Available | | Species |
|---|
| Species of Origin | |
|---|
| Chemical Taxonomy |
|---|
| Description | Belongs to the class of organic compounds known as glutamine and derivatives. Glutamine and derivatives are compounds containing glutamine or a derivative thereof resulting from reaction of glutamine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. |
|---|
| Kingdom | Organic compounds |
|---|
| Super Class | Organic acids and derivatives |
|---|
| Class | Carboxylic acids and derivatives |
|---|
| Sub Class | Amino acids, peptides, and analogues |
|---|
| Direct Parent | Glutamine and derivatives |
|---|
| Alternative Parents | |
|---|
| Substituents | - Glutamine or derivatives
- Alpha-amino acid
- L-alpha-amino acid
- Fatty amide
- N-acyl-amine
- Fatty acid
- Fatty acyl
- Carboxamide group
- Secondary carboxylic acid amide
- Amino acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Organic nitrogen compound
- Primary amine
- Organooxygen compound
- Organonitrogen compound
- Organopnictogen compound
- Primary aliphatic amine
- Organic oxygen compound
- Carbonyl group
- Organic oxide
- Amine
- Hydrocarbon derivative
- Aliphatic acyclic compound
|
|---|
| Molecular Framework | Aliphatic acyclic compounds |
|---|
| External Descriptors | |
|---|
| Physical Properties |
|---|
| State | Not Available |
|---|
| Experimental Properties | | Property | Value | Reference |
|---|
| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
|
|---|
| Predicted Properties | |
|---|
| General References | - Di X, Yan J, Zhao Y, Zhang J, Shi Z, Chang Y, Zhao B: L-theanine protects the APP (Swedish mutation) transgenic SH-SY5Y cell against glutamate-induced excitotoxicity via inhibition of the NMDA receptor pathway. Neuroscience. 2010 Jul 14;168(3):778-86. doi: 10.1016/j.neuroscience.2010.04.019. Epub 2010 Apr 21. [PubMed:20416364 ]
- Scheid L, Ellinger S, Alteheld B, Herholz H, Ellinger J, Henn T, Helfrich HP, Stehle P: Kinetics of L-theanine uptake and metabolism in healthy participants are comparable after ingestion of L-theanine via capsules and green tea. J Nutr. 2012 Dec;142(12):2091-6. doi: 10.3945/jn.112.166371. Epub 2012 Oct 24. [PubMed:23096008 ]
- Zukhurova M, Prosvirnina M, Daineko A, Simanenkova A, Petrishchev N, Sonin D, Galagudza M, Shamtsyan M, Juneja LR, Vlasov T: L-theanine administration results in neuroprotection and prevents glutamate receptor agonist-mediated injury in the rat model of cerebral ischemia-reperfusion. Phytother Res. 2013 Sep;27(9):1282-7. doi: 10.1002/ptr.4868. Epub 2012 Oct 24. [PubMed:23097345 ]
- Tian X, Sun L, Gou L, Ling X, Feng Y, Wang L, Yin X, Liu Y: Protective effect of l-theanine on chronic restraint stress-induced cognitive impairments in mice. Brain Res. 2013 Mar 29;1503:24-32. doi: 10.1016/j.brainres.2013.01.048. Epub 2013 Feb 5. [PubMed:23395732 ]
- Ross SM: L-theanine (suntheanin): effects of L-theanine, an amino acid derived from Camellia sinensis (green tea), on stress response parameters. Holist Nurs Pract. 2014 Jan-Feb;28(1):65-8. doi: 10.1097/HNP.0000000000000009. [PubMed:24304633 ]
- LOTUS database [Link]
|
|---|