| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2006-08-12 20:29:18 UTC |
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| Update Date | 2021-10-13 04:41:39 UTC |
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| HMDB ID | HMDB0003417 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | D-Cysteine |
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| Description | D-cysteine is an optically active form of cysteine having D-configuration. It is a cysteine and a D-alpha-amino acid. It is a conjugate base of a D-cysteinium. It is a conjugate acid of a D-cysteinate(1-). It is an enantiomer of a L-cysteine. It is a tautomer of a D-cysteine zwitterion. D-Cysteine, also known as D-cystein or DCY, belongs to the class of organic compounds known as cysteine and derivatives. Cysteine and derivatives are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. It is a non-proteogenic sulfur-containing amino acid. D-Cysteine is known to be toxic to bacteria and several bacteria (and plants) have developed and enzyme called D-cysteine desulfhydrase (EC4.1.99.4). D-cysteine can be generated from D-Cysteine via cysteine racemase. D-Cysteine is a naturally occurring enantiomer of L-Cysteine. Cysteine is named after cystine, which comes from the Greek word kustis meaning bladder -cystine was first isolated from kidney stones. D-Cysteine exists in all living species, ranging from bacteria to humans. Outside of the human body, D-Cysteine has been detected, but not quantified in several different foods, such as chervils, fruits, lichee, nuts, and cherimoya. |
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| Structure | InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1 |
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| Synonyms | | Value | Source |
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| (2S)-2-Amino-3-mercaptopropanoic acid | ChEBI | | (2S)-2-Amino-3-sulfanylpropanoic acid | ChEBI | | (S)-2-Amino-3-mercaptopropanoic acid | ChEBI | | D-Amino-3-mercaptopropionic acid | ChEBI | | D-Cystein | ChEBI | | D-Zystein | ChEBI | | DCY | ChEBI | | (2S)-2-Amino-3-mercaptopropanoate | Generator | | (2S)-2-Amino-3-sulfanylpropanoate | Generator | | (2S)-2-Amino-3-sulphanylpropanoate | Generator | | (2S)-2-Amino-3-sulphanylpropanoic acid | Generator | | (S)-2-Amino-3-mercaptopropanoate | Generator | | D-Amino-3-mercaptopropionate | Generator | | Cysteine | MeSH, HMDB | | Half cystine | MeSH, HMDB | | Cysteine hydrochloride | MeSH, HMDB | | Half-cystine | MeSH, HMDB | | L-Cysteine | MeSH, HMDB | | L Cysteine | MeSH, HMDB | | Zinc cysteinate | MeSH, HMDB |
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| Chemical Formula | C3H7NO2S |
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| Average Molecular Weight | 121.15 |
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| Monoisotopic Molecular Weight | 121.019749643 |
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| IUPAC Name | (2S)-2-amino-3-sulfanylpropanoic acid |
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| Traditional Name | L cysteine |
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| CAS Registry Number | 921-01-7 |
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| SMILES | N[C@H](CS)C(O)=O |
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| InChI Identifier | InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1 |
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| InChI Key | XUJNEKJLAYXESH-UWTATZPHSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as cysteine and derivatives. Cysteine and derivatives are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. |
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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 | Cysteine and derivatives |
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| Alternative Parents | |
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| Substituents | - Cysteine or derivatives
- Alpha-amino acid
- D-alpha-amino acid
- Amino acid
- Alkylthiol
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Organic oxygen compound
- Primary amine
- Organosulfur compound
- Organooxygen compound
- Organonitrogen compound
- Organic nitrogen compound
- Primary aliphatic amine
- Carbonyl group
- Amine
- Hydrocarbon derivative
- Organopnictogen 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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| Ontology |
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| Not Available | Not Available |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 0.95 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.9987 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 6.63 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 366.0 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1059.2 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 386.5 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 51.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 255.6 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 99.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 303.3 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 273.2 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 843.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 647.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 37.3 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 884.4 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 237.7 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 278.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 694.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 365.5 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 399.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| D-Cysteine,1TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@H](N)CS | 1232.3 | Semi standard non polar | 33892256 | | D-Cysteine,1TMS,isomer #2 | C[Si](C)(C)SC[C@@H](N)C(=O)O | 1396.7 | Semi standard non polar | 33892256 | | D-Cysteine,1TMS,isomer #3 | C[Si](C)(C)N[C@H](CS)C(=O)O | 1356.8 | Semi standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@H](N)CS[Si](C)(C)C | 1430.6 | Semi standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@H](N)CS[Si](C)(C)C | 1483.2 | Standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@H](N)CS[Si](C)(C)C | 1966.7 | Standard polar | 33892256 | | D-Cysteine,2TMS,isomer #2 | C[Si](C)(C)N[C@H](CS)C(=O)O[Si](C)(C)C | 1373.0 | Semi standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #2 | C[Si](C)(C)N[C@H](CS)C(=O)O[Si](C)(C)C | 1346.7 | Standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #2 | C[Si](C)(C)N[C@H](CS)C(=O)O[Si](C)(C)C | 1622.8 | Standard polar | 33892256 | | D-Cysteine,2TMS,isomer #3 | C[Si](C)(C)N[C@H](CS[Si](C)(C)C)C(=O)O | 1507.3 | Semi standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #3 | C[Si](C)(C)N[C@H](CS[Si](C)(C)C)C(=O)O | 1480.2 | Standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #3 | C[Si](C)(C)N[C@H](CS[Si](C)(C)C)C(=O)O | 1939.2 | Standard polar | 33892256 | | D-Cysteine,2TMS,isomer #4 | C[Si](C)(C)N([C@H](CS)C(=O)O)[Si](C)(C)C | 1542.8 | Semi standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #4 | C[Si](C)(C)N([C@H](CS)C(=O)O)[Si](C)(C)C | 1433.3 | Standard non polar | 33892256 | | D-Cysteine,2TMS,isomer #4 | C[Si](C)(C)N([C@H](CS)C(=O)O)[Si](C)(C)C | 1777.1 | Standard polar | 33892256 | | D-Cysteine,3TMS,isomer #1 | C[Si](C)(C)N[C@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1547.8 | Semi standard non polar | 33892256 | | D-Cysteine,3TMS,isomer #1 | C[Si](C)(C)N[C@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1544.9 | Standard non polar | 33892256 | | D-Cysteine,3TMS,isomer #1 | C[Si](C)(C)N[C@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1647.5 | Standard polar | 33892256 | | D-Cysteine,3TMS,isomer #2 | C[Si](C)(C)OC(=O)[C@@H](CS)N([Si](C)(C)C)[Si](C)(C)C | 1560.2 | Semi standard non polar | 33892256 | | D-Cysteine,3TMS,isomer #2 | C[Si](C)(C)OC(=O)[C@@H](CS)N([Si](C)(C)C)[Si](C)(C)C | 1545.0 | Standard non polar | 33892256 | | D-Cysteine,3TMS,isomer #2 | C[Si](C)(C)OC(=O)[C@@H](CS)N([Si](C)(C)C)[Si](C)(C)C | 1630.8 | Standard polar | 33892256 | | D-Cysteine,3TMS,isomer #3 | C[Si](C)(C)SC[C@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 1674.3 | Semi standard non polar | 33892256 | | D-Cysteine,3TMS,isomer #3 | C[Si](C)(C)SC[C@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 1640.0 | Standard non polar | 33892256 | | D-Cysteine,3TMS,isomer #3 | C[Si](C)(C)SC[C@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 1769.1 | Standard polar | 33892256 | | D-Cysteine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H](CS[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 1709.4 | Semi standard non polar | 33892256 | | D-Cysteine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H](CS[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 1691.1 | Standard non polar | 33892256 | | D-Cysteine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H](CS[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 1597.8 | Standard polar | 33892256 | | D-Cysteine,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@H](N)CS | 1477.3 | Semi standard non polar | 33892256 | | D-Cysteine,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)SC[C@@H](N)C(=O)O | 1634.9 | Semi standard non polar | 33892256 | | D-Cysteine,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N[C@H](CS)C(=O)O | 1628.9 | Semi standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@H](N)CS[Si](C)(C)C(C)(C)C | 1910.9 | Semi standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@H](N)CS[Si](C)(C)C(C)(C)C | 1945.2 | Standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@H](N)CS[Si](C)(C)C(C)(C)C | 2095.6 | Standard polar | 33892256 | | D-Cysteine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N[C@H](CS)C(=O)O[Si](C)(C)C(C)(C)C | 1841.2 | Semi standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N[C@H](CS)C(=O)O[Si](C)(C)C(C)(C)C | 1804.2 | Standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N[C@H](CS)C(=O)O[Si](C)(C)C(C)(C)C | 1889.6 | Standard polar | 33892256 | | D-Cysteine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N[C@H](CS[Si](C)(C)C(C)(C)C)C(=O)O | 1997.9 | Semi standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N[C@H](CS[Si](C)(C)C(C)(C)C)C(=O)O | 1935.6 | Standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N[C@H](CS[Si](C)(C)C(C)(C)C)C(=O)O | 2068.0 | Standard polar | 33892256 | | D-Cysteine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)N([C@H](CS)C(=O)O)[Si](C)(C)C(C)(C)C | 2011.1 | Semi standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)N([C@H](CS)C(=O)O)[Si](C)(C)C(C)(C)C | 1890.2 | Standard non polar | 33892256 | | D-Cysteine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)N([C@H](CS)C(=O)O)[Si](C)(C)C(C)(C)C | 1926.0 | Standard polar | 33892256 | | D-Cysteine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N[C@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2209.4 | Semi standard non polar | 33892256 | | D-Cysteine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N[C@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2208.7 | Standard non polar | 33892256 | | D-Cysteine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N[C@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2038.9 | Standard polar | 33892256 | | D-Cysteine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H](CS)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2226.0 | Semi standard non polar | 33892256 | | D-Cysteine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H](CS)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2211.8 | Standard non polar | 33892256 | | D-Cysteine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H](CS)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 1954.6 | Standard polar | 33892256 | | D-Cysteine,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SC[C@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2354.4 | Semi standard non polar | 33892256 | | D-Cysteine,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SC[C@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2283.6 | Standard non polar | 33892256 | | D-Cysteine,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SC[C@H](C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2091.4 | Standard polar | 33892256 | | D-Cysteine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H](CS[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2581.8 | Semi standard non polar | 33892256 | | D-Cysteine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H](CS[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2504.1 | Standard non polar | 33892256 | | D-Cysteine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H](CS[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2105.3 | Standard polar | 33892256 |
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