You have just sequenced a new protein found in mice and observe that sulphur-containing cysteine residues occur at regular intervals.What is the significance of this finding?

Question

Quizplus · Accepted Answer

Cysteine residues are known to form disulfide bridges in proteins. These disulfide bridges contribute to the stabilization of the tertiary structure of the protein. The occurrence of regular intervals of cysteine residues in a protein suggests that the protein may fold into a specific 3D conformation that requires disulfide bridges. Therefore, the presence of regular intervals of cysteine residues in the newly sequenced protein suggests that it may have a specific tertiary structure that is stabilized by disulfide bridges.

You Have Just Sequenced a New Protein Found in Mice