Livestock Metabolome Database: Showing metabocard for L-Cysteine (LMDB00183)

Identification Taxonomy Ontology Physical properties Spectra Biological properties Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2016-07-13 19:44:11 UTC

Update Date

2016-09-23 18:44:53 UTC

Lmdb

LMDB00183

Secondary Accession Numbers

None

Metabolite Identification

Common Name

L-Cysteine

Description

Cysteine is a naturally occurring, sulfur-containing amino acid that is found in most proteins, although only in small quantities. Cysteine is unique amongst the twenty natural amino acids as it contains a thiol group. Thiol groups can undergo oxidation/reduction (redox) reactions; when cysteine is oxidized it can form cystine, which is two cysteine residues joined by a disulfide bond. This reaction is reversible: as reduction of this disulphide bond regenerates two cysteine molecules. The disulphide bonds of cystine are crucial to defining the structures of many proteins. Cysteine is often involved in electron-transfer reactions, and help the enzyme catalyze its reaction. Cysteine is also part of the antioxidant glutathione. N-acetyl-L-cysteine (NAC) is a form of cysteine where an acetyl group is attached to cysteine's nitrogen atom and is sold as a dietary supplement. Cysteine is named after cystine, which comes from the Greek word kustis meaning bladder - cystine was first isolated from kidney stones. As cysteine contains a sulphydryl group, it can undergo redox reactions. Oxidation of cysteine can produce a disulfide bond with another thiol, or further oxidation can produce sulphfinic or sulfonic acids. The cysteine thiol group is also a nucleophile and can undergo addition and substitution reactions. Thiol groups become much more reactive when they are ionized, and cysteine residues in proteins have pKa values close to neutrality, so are often in their reactive thiolate form in the cell. The thiol group also has a high affinity for heavy metals and proteins containing cysteine will bind metals such as mercury, lead and cadmium tightly. Due to this ability to undergo redox reactions, cysteine has antioxidant properties. Cysteine is an important source of sulfur in animal metabolism, and although it is classified as a non-essential amino acid, cysteine may be essential for infants, the elderly, and individuals with certain metabolic disease or who suffer from malabsorption syndromes. Cysteine may at some point be recognized as an essential or conditionally essential amino acid. (http://en.wikipedia.org/wiki/Cysteine). Cysteine is important in energy metabolism. As cystine, it is a structural component of many tissues and hormones. Cysteine has clinical uses ranging from baldness to psoriasis to preventing smoker's hack. In some cases, oral cysteine therapy has proved excellent for treatment of asthmatics, enabling them to stop theophylline and other medications. Cysteine also enhances the effect of topically applied silver, tin and zinc salts in preventing dental cavities. In the future, cysteine may play a role in the treatment of cobalt toxicity, diabetes, psychosis, cancer and seizures. (http://www.dcnutrition.com/AminoAcids/).

Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
(2R)-2-Amino-3-mercaptopropanoic acid	ChEBI
(2R)-2-Amino-3-sulfanylpropanoic acid	ChEBI
(R)-2-Amino-3-mercaptopropanoic acid	ChEBI
C	ChEBI
Cys	ChEBI
CYSTEINE	ChEBI
e 920	ChEBI
e-920	ChEBI
e920	ChEBI
FREE cysteine	ChEBI
L-2-Amino-3-mercaptopropionic acid	ChEBI
L-Cystein	ChEBI
L-Zystein	ChEBI
Ecolan	Kegg
(2R)-2-Amino-3-mercaptopropanoate	Generator
(2R)-2-Amino-3-sulfanylpropanoate	Generator
(2R)-2-Amino-3-sulphanylpropanoate	Generator
(2R)-2-Amino-3-sulphanylpropanoic acid	Generator
(R)-2-Amino-3-mercaptopropanoate	Generator
L-2-Amino-3-mercaptopropionate	Generator
(+)-2-Amino-3-mercaptopropionic acid	HMDB
(R)-(+)-Cysteine	HMDB
(R)-2-Amino-3-mercapto-propanoate	HMDB
(R)-2-Amino-3-mercapto-propanoic acid	HMDB
(R)-Cysteine	HMDB
2-Amino-3-mercaptopropanoate	HMDB
2-Amino-3-mercaptopropanoic acid	HMDB
2-Amino-3-mercaptopropionate	HMDB
2-Amino-3-mercaptopropionic acid	HMDB
3-Mercapto-L-alanine	HMDB
Acetylcysteine	HMDB
alpha-Amino-beta-thiolpropionic acid	HMDB
b-Mercaptoalanine	HMDB
beta-Mercaptoalanine	HMDB
Carbocysteine	HMDB
Cisteina	HMDB
Cisteinum	HMDB
Cystein	HMDB
Cysteinum	HMDB
Half-cystine	HMDB
L Cysteine	HMDB
L-(+)-Cysteine	HMDB
L-2-Amino-3-mercaptopropanoate	HMDB
L-2-Amino-3-mercaptopropanoic acid	HMDB
Polycysteine	HMDB
Thioserine	HMDB
Cysteine hydrochloride	HMDB
Zinc cysteinate	HMDB
Half cystine	HMDB

Chemical Formula

C₃H₇NO₂S

Average Molecular Weight

121.158

Monoisotopic Molecular Weight

121.019749163

IUPAC Name

(2R)-2-amino-3-sulfanylpropanoic acid

Traditional Name

L-cysteine

CAS Registry Number

52-90-4

SMILES

N[C@@H](CS)C(O)=O

InChI Identifier

InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1

InChI Key

XUJNEKJLAYXESH-REOHCLBHSA-N

Chemical Taxonomy

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.

Kingdom

Organic compounds

Super Class

Organic acids and derivatives

Class

Carboxylic acids and derivatives

Sub Class

Amino acids, peptides, and analogues

Direct Parent

Cysteine and derivatives

Alternative Parents

Substituents

Cysteine or derivatives
Alpha-amino acid
L-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

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

proteinogenic amino acid (CHEBI:17561 )
L-alpha-amino acid (CHEBI:17561 )
cysteine (CHEBI:17561 )
serine family amino acid (CHEBI:17561 )
Common amino acids (C00097 )

Ontology

Status

Detected and Quantified

Origin

Not Available

Biofunction

Not Available

Application

Not Available

Cellular locations

Not Available

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

Property	Value	Source
logP	-2.6	ALOGPS
logP	-2.8	ChemAxon
logS	-0.72	ALOGPS
pKa (Strongest Acidic)	2.35	ChemAxon
pKa (Strongest Basic)	9.05	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	3	ChemAxon
Hydrogen Donor Count	3	ChemAxon
Polar Surface Area	63.32 Å²	ChemAxon
Rotatable Bond Count	2	ChemAxon
Refractivity	28.22 m³·mol⁻¹	ChemAxon
Polarizability	11.41 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	Yes	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	Yes	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (4 TMS)	splash10-00kb-0950000000-df7e91c95b610ff21c79	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (4 TMS)	splash10-00kb-0940000000-aefe34765fb447090a23	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (4 TMS)	splash10-00kb-0970000000-10a155c40ea499023052	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)	splash10-00kb-0940000000-037a3a34651c3154b3b3	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (4 TMS)	splash10-00di-9850000000-118c43e33861a6baa8d2	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-014j-0690100000-0aeb88fd507505e6b718	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00kb-0950000000-df7e91c95b610ff21c79	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00kb-0940000000-aefe34765fb447090a23	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00kb-0970000000-10a155c40ea499023052	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00kb-0940000000-037a3a34651c3154b3b3	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-QQ (Non-derivatized)	splash10-0uk9-5619100000-8cb2558373966174ced3	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00di-9850000000-118c43e33861a6baa8d2	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-0gi0-0960000000-03b2097de6f9637d29cb	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-004l-9100000000-4553906a941a5e87ec97	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positive	splash10-004i-9200000000-cfaf705cd0452d428454	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_3) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_3) - 70eV, Positive	Not Available	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)	splash10-00b9-9600000000-374c5872d68662832769	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)	splash10-0a4i-9000000000-ddbd3df6b8dbb280ffba	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)	splash10-0a4i-9000000000-320a2c77443b80ebf733	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-0089-0900000000-9dcd3d757c5cd11eb18e	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-0udi-3900000000-212e081fe83ad70de0ad	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-000i-9000000000-2eb01f41c225f614db24	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-001i-0900000000-a19834eb7cb9f211fdf2	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-00di-0900000000-2458f2587761e779ed93	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-0a4i-9000000000-77e590f0ed26f69b31c0	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-0udi-3900000000-7b1857997392b006b95f	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-0a4i-3900000000-bc268c27ed5706a4bbd2	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - CE-ESI-TOF (CE-system connected to 6210 Time-of-Flight MS, Agilent) , Positive	splash10-00di-0900000000-4573390bccc238e3c91b	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT , positive	splash10-0udi-3900000000-212e081fe83ad70de0ad	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT , positive	splash10-0udi-3900000000-7b1857997392b006b95f	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - QqQ 14V, negative	splash10-001i-9000000000-5dc69d3b59bd15290aef	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - 10V, Positive	splash10-0a6r-9100000000-ed3c9c47ed98679090ab	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - 0V, Positive	splash10-00di-2900000000-8bb219d17ccdf7ac0a5d	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - 30V, Positive	splash10-0a4i-9000000000-e623d5a27b5075c82b4d	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - 10V, Positive	splash10-056r-9100000000-4e26cc13af7c878115f7	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-00b9-9600000000-4352a7b437c34c04d9f0	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-004i-9200000000-7b4cd034c717561c61dd	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-052f-9000000000-8f351cbca6ffed356a9b	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-00di-6900000000-51ba0df80cc33423420b	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0079-9400000000-4aa2b707c391d5838d29	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-001i-9000000000-95c7672c7836c0fc51c9	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
2D NMR	[1H,1H] 2D NMR Spectrum	Not Available	Spectrum
2D NMR	[1H,13C] 2D NMR Spectrum	Not Available	Spectrum

Biological Properties

Cellular Locations

Not Available

Biofluid Locations and Tissue Locations

Feces
Kidney
Plasma
Serum

Concentrations

Biofluid	Status	Value	Condition	Species	Reference	Details
Feces	Detected but not Quantified	Not Applicable	Not Available	Ovine	17249687	details
Kidney	Detected but not Quantified	Not Applicable	Not Available	Porcine	21761043	details
Plasma	Detected but not Quantified	Not Applicable	Not Available	Ovine	17249687	details
Plasma	Detected but not Quantified	Not Applicable	Not Available	Porcine	22675387	details
Serum	Detected and Quantified	11.803 uM	Not Available	Porcine	26020888	details
Serum	Detected and Quantified	9.409 uM	Not Available	Porcine	26020888	details
Serum	Detected and Quantified	3.797 uM	Not Available	Porcine	26020888	details
Serum	Detected and Quantified	11.308 uM	Not Available	Porcine	26020888	details
Serum	Detected but not Quantified	Not Applicable	Not Available	Caprine	24214495	details