Question

Cysteine is likely to be isolated from proteins that are ________. Cysteine is likely to be isolated from proteins that are ________. Extracellular Intracellular High in methionine In the cell nucleus

Answer 1

Cysteine is an amino acid that is likely to be isolated from the intracellular region.

Step-by-step explanation:

The functional group in cysteine, which is the thiol group is essential for the structural modification of polypeptide after translation. This group does so by the production of the sulfide group after the oxidation of the former group. Thus, cysteine can be isolated from the intracellular region of the cell, since that is where protein post-translational modification occurs. The disulfide bond formed by two cysteine amino acids often leads to cystine.