| Record Information |
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| Version | 2.0 |
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| Created at | 2005-11-16 15:48:42 UTC |
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| Updated at | 2022-01-25 19:10:30 UTC |
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| NP-MRD ID | NP0000253 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | L-Lysine |
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| Description | Lysine (Lys), also known as L-lysine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. Lysine is one of 20 proteinogenic amino acids, i.E., The amino acids used in the biosynthesis of proteins. Lysine is found in all organisms ranging from bacteria to plants to animals. It is classified as an aliphatic, positively charged or basic amino acid. In humans, lysine is an essential amino acid, meaning the body cannot synthesize it, and it must be obtained from the diet. Lysine is high in foods such as wheat germ, cottage cheese and chicken. Of meat products, wild game and pork have the highest concentration of lysine. Fruits and vegetables contain little lysine, except avocados. Normal requirements for lysine have been found to be about 8 g per day or 12 mg/kg in adults. Children and infants need more, 44 mg/kg per day for an eleven to-twelve-year old, and 97 mg/kg per day for three-to six-month old. In organisms that synthesise lysine, it has two main biosynthetic pathways, the diaminopimelate and α-aminoadipate pathways, which employ distinct enzymes and substrates and are found in diverse organisms. Lysine catabolism occurs through one of several pathways, the most common of which is the saccharopine pathway. Lysine plays several roles in humans, most importantly proteinogenesis, but also in the crosslinking of collagen polypeptides, uptake of essential mineral nutrients, and in the production of carnitine, which is key in fatty acid metabolism. Lysine is also often involved in histone modifications, and thus, impacts the epigenome. Lysine is highly concentrated in muscle compared to most other amino acids. Normal lysine metabolism is dependent upon many nutrients including niacin, vitamin B6, riboflavin, vitamin C, glutamic acid and iron. Excess arginine antagonizes lysine. Several inborn errors of lysine metabolism are known, such as cystinuria, hyperdibasic aminoaciduria I, lysinuric protein intolerance, propionic acidemia, and tyrosinemia I. Most are marked by mental retardation with occasional diverse symptoms such as absence of secondary sex characteristics, undescended testes, abnormal facial structure, anemia, obesity, enlarged liver and spleen, and eye muscle imbalance. Lysine also may be a useful adjunct in the treatment of osteoporosis. Although high protein diets result in loss of large amounts of calcium in urine, so does lysine deficiency. Lysine may be an adjunct therapy because it reduces calcium losses in urine. Lysine deficiency also may result in immunodeficiency. Requirements for lysine are probably increased by stress. Lysine toxicity has not occurred with oral doses in humans. Lysine dosages are presently too small and may fail to reach the concentrations necessary to prove potential therapeutic applications. Lysine metabolites, amino caproic acid and carnitine have already shown their therapeutic potential. Thirty grams daily of amino caproic acid has been used as an initial daily dose in treating blood clotting disorders, indicating that the proper doses of lysine, its precursor, have yet to be used in medicine. Low lysine levels have been found in patients with Parkinson's, hypothyroidism, kidney disease, asthma and depression. The exact significance of these levels is unclear, yet lysine therapy can normalize the level and has been associated with improvement of some patients with these conditions. Abnormally elevated hydroxylysines have been found in virtually all chronic degenerative diseases and those treated with coumadin therapy. The levels of this stress marker may be improved by high doses of vitamin C. Lysine is particularly useful in therapy for marasmus (wasting) (http://Www.Dcnutrition.Com). Lysine has also been shown to play a role in anaemia, as lysine is suspected to have an effect on the uptake of iron and, subsequently, the concentration of ferritin in blood plasma. |
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| Structure | InChI=1S/C6H14N2O2/c7-4-2-1-3-5(8)6(9)10/h5H,1-4,7-8H2,(H,9,10)/t5-/m0/s1 |
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| Synonyms | | Value | Source |
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| (S)-2,6-Diaminohexanoic acid | ChEBI | | (S)-alpha,epsilon-Diaminocaproic acid | ChEBI | | (S)-Lysine | ChEBI | | 6-Ammonio-L-norleucine | ChEBI | | K | ChEBI | | L-2,6-Diaminocaproic acid | ChEBI | | L-Lysin | ChEBI | | Lys | ChEBI | | Lysina | ChEBI | | Lysine | ChEBI | | Lysine acid | ChEBI | | Lysinum | ChEBI | | 2,6-Diaminohexanoic acid | Kegg | | (S)-2,6-Diaminohexanoate | Generator | | (S)-a,epsilon-Diaminocaproate | Generator | | (S)-a,epsilon-Diaminocaproic acid | Generator | | (S)-alpha,epsilon-Diaminocaproate | Generator | | (S)-Α,epsilon-diaminocaproate | Generator | | (S)-Α,epsilon-diaminocaproic acid | Generator | | L-2,6-Diaminocaproate | Generator | | 2,6-Diaminohexanoate | Generator | | (+)-S-Lysine | HMDB | | (S)-2,6-Diamino-hexanoate | HMDB | | (S)-2,6-Diamino-hexanoic acid | HMDB | | (S)-a,e-Diaminocaproate | HMDB | | (S)-a,e-Diaminocaproic acid | HMDB | | 6-Amino-aminutrin | HMDB | | 6-Amino-L-norleucine | HMDB | | a-Lysine | HMDB | | alpha-Lysine | HMDB | | Aminutrin | HMDB | | H-Lys-OH | HMDB | | L-(+)-Lysine | HMDB | | L-2,6-Diainohexanoate | HMDB | | L-2,6-Diainohexanoic acid | HMDB | | L-Lys | HMDB | | Acetate, lysine | HMDB | | Enisyl | HMDB | | Lysine hydrochloride | HMDB | | L Lysine | HMDB | | Lysine acetate | HMDB |
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| Chemical Formula | C6H14N2O2 |
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| Average Mass | 146.1876 Da |
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| Monoisotopic Mass | 146.10553 Da |
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| IUPAC Name | (2S)-2,6-diaminohexanoic acid |
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| Traditional Name | L-lysine |
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| CAS Registry Number | 56-87-1 |
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| SMILES | NCCCC[C@H](N)C(O)=O |
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| InChI Identifier | InChI=1S/C6H14N2O2/c7-4-2-1-3-5(8)6(9)10/h5H,1-4,7-8H2,(H,9,10)/t5-/m0/s1 |
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| InChI Key | KDXKERNSBIXSRK-YFKPBYRVSA-N |
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| Experimental Spectra |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, simulated) | Ahselim | | | 2022-01-25 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, simulated) | Varshavi.d26 | | | 2021-08-30 | View Spectrum | | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Predicted Spectra |
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| Not Available | | Chemical Shift Submissions |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 400 MHz, H2O, simulated) | v.dorna83@yahoo.com | Not Available | Not Available | 2021-07-26 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, simulated) | v.dorna83@yahoo.com | Not Available | Not Available | 2021-07-26 | View Spectrum |
| | Species |
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| Species of Origin | |
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| Species Where Detected | |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. |
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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 | L-alpha-amino acids |
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| Alternative Parents | |
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| Substituents | - L-alpha-amino acid
- Medium-chain fatty acid
- Amino fatty acid
- Fatty acid
- Fatty acyl
- Amino acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Primary amine
- Organooxygen compound
- Organonitrogen compound
- Primary aliphatic amine
- Carbonyl group
- Organic nitrogen compound
- Amine
- Hydrocarbon derivative
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | |
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| Physical Properties |
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| State | Solid |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | 224.5 °C | Not Available | | Boiling Point | 311.00 to 312.00 °C. @ 760.00 mm Hg | The Good Scents Company Information System | | Water Solubility | 1000 mg/mL | Not Available | | LogP | -3.05 | Hansch CH, Leo A and Hoekman DH. "Exploring QSAR: Hydrophobic, Electronic, and Steric Constraints. Volume 1" ACS Publications (1995). |
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| Predicted Properties | |
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| General References | - Sreekumar A, Poisson LM, Rajendiran TM, Khan AP, Cao Q, Yu J, Laxman B, Mehra R, Lonigro RJ, Li Y, Nyati MK, Ahsan A, Kalyana-Sundaram S, Han B, Cao X, Byun J, Omenn GS, Ghosh D, Pennathur S, Alexander DC, Berger A, Shuster JR, Wei JT, Varambally S, Beecher C, Chinnaiyan AM: Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression. Nature. 2009 Feb 12;457(7231):910-4. doi: 10.1038/nature07762. [PubMed:19212411 ]
- Silwood CJ, Lynch E, Claxson AW, Grootveld MC: 1H and (13)C NMR spectroscopic analysis of human saliva. J Dent Res. 2002 Jun;81(6):422-7. [PubMed:12097436 ]
- Nicholson JK, O'Flynn MP, Sadler PJ, Macleod AF, Juul SM, Sonksen PH: Proton-nuclear-magnetic-resonance studies of serum, plasma and urine from fasting normal and diabetic subjects. Biochem J. 1984 Jan 15;217(2):365-75. [PubMed:6696735 ]
- Engelborghs S, Marescau B, De Deyn PP: Amino acids and biogenic amines in cerebrospinal fluid of patients with Parkinson's disease. Neurochem Res. 2003 Aug;28(8):1145-50. [PubMed:12834252 ]
- Peng CT, Wu KH, Lan SJ, Tsai JJ, Tsai FJ, Tsai CH: Amino acid concentrations in cerebrospinal fluid in children with acute lymphoblastic leukemia undergoing chemotherapy. Eur J Cancer. 2005 May;41(8):1158-63. Epub 2005 Apr 14. [PubMed:15911239 ]
- Cynober LA: Plasma amino acid levels with a note on membrane transport: characteristics, regulation, and metabolic significance. Nutrition. 2002 Sep;18(9):761-6. [PubMed:12297216 ]
- Kranz BR: Detection of rare malignant cells and their apoptotic fragments in cerebrospinal fluid. Lancet. 2000 Oct 7;356(9237):1242-4. [PubMed:11072949 ]
- Hajishengallis G, Koga T, Russell MW: Affinity and specificity of the interactions between Streptococcus mutans antigen I/II and salivary components. J Dent Res. 1994 Sep;73(9):1493-502. [PubMed:7523469 ]
- Pahler A, Parker J, Dekant W: Dose-dependent protein adduct formation in kidney, liver, and blood of rats and in human blood after perchloroethene inhalation. Toxicol Sci. 1999 Mar;48(1):5-13. [PubMed:10330678 ]
- Faraasen S, Voros J, Csucs G, Textor M, Merkle HP, Walter E: Ligand-specific targeting of microspheres to phagocytes by surface modification with poly(L-lysine)-grafted poly(ethylene glycol) conjugate. Pharm Res. 2003 Feb;20(2):237-46. [PubMed:12636162 ]
- Muller WEG, Schroder HC, Neufurth M, Wang X: An unexpected biomaterial against SARS-CoV-2: Bio-polyphosphate blocks binding of the viral spike to the cell receptor. Mater Today (Kidlington). 2021 Dec;51:504-524. doi: 10.1016/j.mattod.2021.07.029. Epub 2021 Aug 2. [PubMed:34366696 ]
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