Record Information |
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Version | 2.0 |
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Created at | 2006-08-13 11:37:22 UTC |
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Updated at | 2021-06-29 00:47:52 UTC |
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NP-MRD ID | NP0000448 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | Selenocystine |
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Description | Selenocystine 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). In the newer R/S system of designating chirality, based on the atomic numbers of atoms near the asymmetric carbon, they have R chirality, because of the presence of sulfur or selenium as a second neighbor to the asymmetric carbon. In humans, selenocystine is involved in selenoamino acid metabolism. When cells are grown in the absence of selenium, translation of selenoproteins terminates at the UGA codon, resulting in a truncated, nonfunctional enzyme. Instead, cells store selenium in the less reactive oxidized form, selenocystine, or in methylated form, selenomethionine. Unlike other amino acids present in biological proteins, selenocysteine is not coded for directly in the genetic code. Rather, the tRNA-bound seryl residue is converted to a selenocysteine residue by the pyridoxal phosphate-containing enzyme selenocysteine synthase. |
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Structure | NC(C[Se][Se]CC(N)C(O)=O)C(O)=O InChI=1S/C6H12N2O4Se2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12) |
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Synonyms | Value | Source |
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3,3'-Diselenobisalanine | ChEBI | 3,3'-Diselenodialanine | ChEBI | Selenocystine, (D)-isomer | HMDB | Selenocystine, (DL)-isomer | HMDB | Selenocystine, (L)-isomer | HMDB | D,L-Selenocystine | HMDB | DL-Selenocystine | HMDB | Selenium cystine | HMDB | Seleno-DL-cystine | HMDB |
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Chemical Formula | C6H12N2O4Se2 |
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Average Mass | 334.0900 Da |
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Monoisotopic Mass | 335.91275 Da |
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IUPAC Name | 2-amino-3-[(2-amino-2-carboxyethyl)diselanyl]propanoic acid |
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Traditional Name | selenocystine |
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CAS Registry Number | 1464-43-3 |
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SMILES | NC(C[Se][Se]CC(N)C(O)=O)C(O)=O |
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InChI Identifier | InChI=1S/C6H12N2O4Se2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12) |
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InChI Key | JULROCUWKLNBSN-UHFFFAOYSA-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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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 | 1H NMR Spectrum (1D, 600 MHz, H2O, simulated) | varshavi.d26@gmail.com | Not Available | Not Available | 2021-08-11 | View Spectrum |
| Species |
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Species of Origin | |
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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
- Dicarboxylic acid or derivatives
- Diselenide group
- Amino acid
- Carboxylic acid
- Hydrocarbon derivative
- Primary amine
- Organoselenium compound
- Organooxygen compound
- Organonitrogen compound
- Primary aliphatic amine
- Organopnictogen compound
- Organic oxygen compound
- Carbonyl group
- Amine
- Organic nitrogen compound
- Organic oxide
- 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 | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 0.2 mg/mL at 25 °C | Not Available | LogP | Not Available | Not Available |
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Predicted Properties | |
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General References | - Dorea JG: Selenium and breast-feeding. Br J Nutr. 2002 Nov;88(5):443-61. [PubMed:12425725 ]
- Tripathi A, Daolio A, Pizzi A, Guo Z, Turner DR, Baggioli A, Famulari A, Deacon GB, Resnati G, Singh HB: Chalcogen Bonds in Selenocysteine Seleninic Acid, a Functional GPx Constituent, and in Other Seleninic or Sulfinic Acid Derivatives. Chem Asian J. 2021 Aug 16;16(16):2351-2360. doi: 10.1002/asia.202100545. Epub 2021 Jul 16. [PubMed:34214252 ]
- Feng J, Cao Y, Mo G, Tang L, Deng B: [Selenium speciation in watermelon by g-C3N4 enrichment combined with capillary electrophoresis-inductively coupled plasma-mass spectrometry]. Se Pu. 2020 Oct 8;38(10):1224-1231. doi: 10.3724/SP.J.1123.2020.06015. [PubMed:34213120 ]
- Zhou D, Huang H, Yu J, Hu Z: Lysosome-targetable selenium-doped carbon nanodots for in situ scavenging free radicals in living cells and mice. Mikrochim Acta. 2021 Jun 7;188(7):223. doi: 10.1007/s00604-021-04883-1. [PubMed:34097136 ]
- Shimomura T, Hirakawa N, Ohuchi Y, Ishiyama M, Shiga M, Ueno Y: Simple Fluorescence Assay for Cystine Uptake via the xCT in Cells Using Selenocystine and a Fluorescent Probe. ACS Sens. 2021 Jun 25;6(6):2125-2128. doi: 10.1021/acssensors.1c00496. Epub 2021 Jun 3. [PubMed:34080411 ]
- Liao X, Rao S, Yu T, Zhu Z, Yang X, Xue H, Gou Y, Cheng S, Xu F: Selenium yeast promoted the Se accumulation, nutrient quality and antioxidant system of cabbage (Brassica oleracea var. capitata L.). Plant Signal Behav. 2021 Jun 3;16(6):1907042. doi: 10.1080/15592324.2021.1907042. Epub 2021 Apr 5. [PubMed:33818289 ]
- Krausova G, Kana A, Vecka M, Hyrslova I, Stankova B, Kantorova V, Mrvikova I, Huttl M, Malinska H: In Vivo Bioavailability of Selenium in Selenium-Enriched Streptococcus thermophilus and Enterococcus faecium in CD IGS Rats. Antioxidants (Basel). 2021 Mar 16;10(3). pii: antiox10030463. doi: 10.3390/antiox10030463. [PubMed:33809515 ]
- Patel B, Mishra S, Priyadarsini IK, Vavilala SL: Elucidating the anti-biofilm and anti-quorum sensing potential of selenocystine against respiratory tract infections causing bacteria: in vitro and in silico studies. Biol Chem. 2021 Mar 19;402(7):769-783. doi: 10.1515/hsz-2020-0375. Print 2021 Jun 25. [PubMed:33735944 ]
- Shi C, Yue F, Shi F, Qin Q, Wang L, Wang G, Mu L, Liu D, Li Y, Yu T, She J: Selenium-Containing Amino Acids Protect Dextran Sulfate Sodium-Induced Colitis via Ameliorating Oxidative Stress and Intestinal Inflammation. J Inflamm Res. 2021 Jan 14;14:85-95. doi: 10.2147/JIR.S288412. eCollection 2021. [PubMed:33488110 ]
- Canal-Martin A, Perez-Fernandez R: Biomimetic selenocystine based dynamic combinatorial chemistry for thiol-disulfide exchange. Nat Commun. 2021 Jan 8;12(1):163. doi: 10.1038/s41467-020-20415-6. [PubMed:33420034 ]
- Luo W, Wang Y, Lin F, Liu Y, Gu R, Liu W, Xiao C: Selenium-Doped Carbon Quantum Dots Efficiently Ameliorate Secondary Spinal Cord Injury via Scavenging Reactive Oxygen Species. Int J Nanomedicine. 2020 Dec 14;15:10113-10125. doi: 10.2147/IJN.S282985. eCollection 2020. [PubMed:33363370 ]
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