RefMet Compound Details

RefMet ID	RM0129784
MW structure	37316 (View MW Metabolite Database details)
RefMet name	Cysteine
Systematic name	(2R)-2-amino-3-sulfanylpropanoic acid
SMILES	C([C@@H](C(=O)O)N)S   Run Tanimoto similarity search (with similarity coefficient >=0.6)
Exact mass	121.019751 (neutral)	Calculate m/z: (Choose adduct) [M+H]+ [M+H-H2O]+ [M.]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M+2K-H]+ [M+Na]+ [M+2Na]2+ [M+2Na-H]+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M.CH3]+ [M+Ag]+ [M+H+CH3OH]+ [M+H+CH3CN]+ [M+H+2CH3CN]+ [M+Na+CH3CN]+ [M.NaFormate+H]+ [M.NH4Formate+H]+ [M.TMSi]+ [M.tBuDMSi]+ [M+H-Hexose]+ [M+H-EtnP]+ [M+H-SerP]+ [M-H]- [M-H-H2O]- [M-CH3]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- [M+Na-2H]- [M+K-2H]- [M.Formate]- [M.NaFormate-H]- [M.NH4Formate-H]- [M.F]- [M-H-Ser]- [M.HF2]- M(neutral)    View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
Formula	C3H7NO2S	View other entries in RefMet with this formula
InChI	InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
InChIKey	XUJNEKJLAYXESH-REOHCLBHSA-N	View other enantiomers/diastereomers of this metabolite in RefMet
Super Class	Organic acids
Main Class	Amino acids and peptides
Sub Class	Amino acids
Pubchem CID	5862
ChEBI ID	35235
Annotation level	1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving Cysteine

Rxn ID	KEGG Reaction	Enzyme
R00782	L-Cysteine + H2O <=> Hydrogen sulfide + Pyruvate + Ammonia	L-cysteine hydrogen-sulfide-lyase (deaminating
R00891	L-Serine + Hydrogen sulfide <=> L-Cysteine + H2O	L-serine hydro-lyase (adding hydrogen sulfide, L-cysteine-forming)
R00893	L-Cysteine + Oxygen <=> 3-Sulfino-L-alanine	L-Cysteine:oxygen oxidoreductase
R00895	L-Cysteine + 2-Oxoglutarate <=> Mercaptopyruvate + L-Glutamate	L-Cysteine:2-oxoglutarate aminotransferase
R00896	L-Cysteine + 2-Oxoglutarate <=> Mercaptopyruvate + Glutamate	L-cysteine:2-oxoglutarate aminotransferase
R01001	L-Cystathionine + H2O <=> L-Cysteine + Ammonia + 2-Oxobutanoate	L-cystathionine cysteine-lyase (deaminating
R03650	ATP + L-Cysteine + tRNA(Cys) <=> AMP + Diphosphate + L-Cysteinyl-tRNA(Cys)	L-Cysteine:tRNA(Cys) ligase (AMP-forming)

Table of KEGG human pathways containing Cysteine

Pathway ID	Human Pathway	# of reactions
hsa00270	Cysteine and methionine metabolism	4
hsa00480	Glutathione metabolism	3
hsa00260	Glycine, serine and threonine metabolism	2
hsa00970	Aminoacyl-tRNA biosynthesis	1
hsa01100	Metabolic pathways	1
hsa01230	Biosynthesis of amino acids	1
hsa00430	Taurine and hypotaurine metabolism	1
hsa00730	Thiamine metabolism	1