RefMet Compound Details

MW structure37316 (View MW Metabolite Database details)
RefMet nameCysteine
Systematic name(2R)-2-amino-3-sulfanylpropanoic acid
SMILESC([C@@H](C(=O)O)N)S   Run Tanimoto similarity search (with similarity coefficient >=0.6)
Exact mass121.019751 (neutral)
Calculate m/z:   
View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
FormulaC3H7NO2SView other entries in RefMet with this formula
InChIKeyXUJNEKJLAYXESH-REOHCLBHSA-NView other enantiomers/diastereomers of this metabolite in RefMet
Super ClassOrganic acids
Main ClassAmino acids and peptides
Sub ClassAmino acids
Pubchem CID5862
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving Cysteine

Rxn IDKEGG ReactionEnzyme
R01001 L-Cystathionine + H2O <=> L-Cysteine + Ammonia + 2-OxobutanoateL-cystathionine cysteine-lyase (deaminating
R00782 L-Cysteine + H2O <=> Hydrogen sulfide + Pyruvate + AmmoniaL-cysteine hydrogen-sulfide-lyase (deaminating
R03650 ATP + L-Cysteine + tRNA(Cys) <=> AMP + Diphosphate + L-Cysteinyl-tRNA(Cys)L-Cysteine:tRNA(Cys) ligase (AMP-forming)
R00893 L-Cysteine + Oxygen <=> 3-Sulfino-L-alanineL-Cysteine:oxygen oxidoreductase
R00896 L-Cysteine + 2-Oxoglutarate <=> Mercaptopyruvate + GlutamateL-cysteine:2-oxoglutarate aminotransferase
R00891 L-Serine + Hydrogen sulfide <=> L-Cysteine + H2OL-serine hydro-lyase (adding hydrogen sulfide, L-cysteine-forming)
R00895 L-Cysteine + 2-Oxoglutarate <=> Mercaptopyruvate + L-GlutamateL-Cysteine:2-oxoglutarate aminotransferase

Table of KEGG human pathways containing Cysteine

Pathway IDHuman 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