Record Information
Version1.0
StatusDetected and Quantified
Creation Date2020-12-10 18:39:09 UTC
Update Date2024-09-28 01:42:19 UTC
Metabolite IDMMDBc0000499
Metabolite Identification
Common NameL-Cystine
DescriptionCystine is an oxidized dimeric form of cysteine. It is formed by linking two cysteine residues via a disulfide bond (Cys-S-S-Cys) between the -SH groups. Cystine is found in high concentrations in digestive enzymes and in the cells of the immune system, skeletal and connective tissues, skin, and hair. Hair and skin are 10-14% cystine. Cystine is the preferred form of cysteine for the synthesis of glutathione in cells involved in the immune system (e.g. macrophages and astrocytes). Lymphocytes and neurons prefer cysteine for glutathione production. Optimizing glutathione levels in macrophages and astrocytes with cystine allows these cells to provide cysteine to lymphocytes and neurons directly upon demand (Wikipedia).
Structure
SynonymsNot Available
Molecular FormulaC6H12N2O4S2
Average Mass240.3
Monoisotopic Mass240.023848262
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry NumberNot Available
SMILESNot Available
InChI Identifier
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
InChI KeyLEVWYRKDKASIDU-IMJSIDKUSA-N