RefMet Compound Details

MW structure37127 (View MW Metabolite Database details)
RefMet nameCystine
Systematic name(2R)-2-amino-3-{[(2R)-2-amino-2-carboxyethyl]disulfanyl}propanoic acid
Exact mass240.023852 (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
FormulaC6H12N2O4S2View other entries in RefMet with this formula
InChIKeyLEVWYRKDKASIDU-IMJSIDKUSA-NView other enantiomers/diastereomers of this metabolite in RefMet
Super ClassOrganic acids
Main ClassAmino acids and peptides
Sub ClassAmino acids
Pubchem CID67678
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)
Human quantitationView measurements in targeted assays on human samples

Table of KEGG reactions in human pathways involving Cystine

Rxn IDKEGG ReactionEnzyme
R02408 L-Cystine + H2O <=> Pyruvate + Ammonia + ThiocysteineL-cystine thiocysteine-lyase (deaminating

Table of KEGG human pathways containing Cystine

Pathway IDHuman Pathway# of reactions
hsa00270 Cysteine and methionine metabolism 1