Noun
A white crystalline substance, C3H7NSO2, containing sulphur, occuring as a constituent of certain rare urinary calculi, and occasionally found as a sediment in urine.
Source: Webster's dictionaryIn contrast, cystine travels safely through the GI tract and blood plasma and is promptly reduced to the two cysteine molecules upon cell entry. Source: Internet
Insulin is an example of a protein with cystine crosslinking, wherein two separate peptide chains are connected by a pair of disulfide bonds. Source: Internet
In this environment, cysteines are, in general, oxidized to cystine and are no longer functional as a nucleophiles. Source: Internet
However, examples of rotaxane substructure have been found in naturally occurring peptides, including: cystine knot peptides, cyclotides or lasso-peptides such as microcin J25. Source: Internet
It is believed that the macromolecule accountable for maintaining the dormant state has a protein coat rich in cystine, stabilized by S-S linkages. Source: Internet
Methionine, cysteine and cystine are the limiting amino acids in cassava root. Source: Internet