Question

Disulfide bonds can be formed in proteins ________.

Select one:

a. between two Cys

b. between Cys and Met

c. between Met and Ser

d. between two Ser

e. between two Met

Answer 1

Disulfide bonds can be formed in proteins ..........

Correct option- a. between two Cys

Justification: This is the correct option because Disulphide bonds form between two cysteine amino acid in the protein by the process of oxidative folding.

Reason for incorrect options:

In other options, sulphur-containing amino acid methionine is present which cannot form disulphide bond because there is no

S-H group in methionine to form disulphide bond. Serine amino acid also does not form disulphide bond.