TLS Online TPP Program

#Question id: 137


Disulfide bridges can form in proteins ________.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. only between cysteine residues side-by-side in the protein sequence

  2. between cysteine residues that are close in three-dimensional space, but not necessarily close in the primary structure

  3. between two cystine residues in proteins

  4. between any two methionines or cysteines