cystine
Noun
Meaning
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 dictionarySynonyms
Hypernyms
Anagrams
Examples
In contrast, cystine travels safely through the GI tract and blood plasma and is promptly reduced to the two cysteine molecules upon cell entry.
Insulin is an example of a protein with cystine crosslinking, wherein two separate peptide chains are connected by a pair of disulfide bonds.
In this environment, cysteines are, in general, oxidized to cystine and are no longer functional as a nucleophiles.
However, examples of rotaxane substructure have been found in naturally occurring peptides, including: cystine knot peptides, cyclotides or lasso-peptides such as microcin J25.
It is believed that the macromolecule accountable for maintaining the dormant state has a protein coat rich in cystine, stabilized by S-S linkages.
Methionine, cysteine and cystine are the limiting amino acids in cassava root.