RefMet Compound Details

MW structure	37127 (View MW Metabolite Database details)
RefMet name	Cystine
Systematic name	(2R)-2-amino-3-{[(2R)-2-amino-2-carboxyethyl]disulfanyl}propanoic acid
SMILES	N[C@@H](CSSC[C@H](N)C(=O)O)C(=O)O   Run Tanimoto similarity search (with similarity coefficient >=0.6)
Exact mass	240.023852 (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	C6H12N2O4S2	View other entries in RefMet with this formula
InChI	InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
InChIKey	LEVWYRKDKASIDU-IMJSIDKUSA-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	67678
Annotation level	1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving Cystine

Rxn ID	KEGG Reaction	Enzyme
R02408	L-Cystine + H2O <=> Pyruvate + Ammonia + Thiocysteine	L-cystine thiocysteine-lyase (deaminating

Table of KEGG human pathways containing Cystine

Pathway ID	Human Pathway	# of reactions
hsa00270	Cysteine and methionine metabolism	1