You've just sequenced a new protein found in mice and observe that sulfur- containing cysteine residues occur at regular intervals. What is the significance of this finding?
A) It will be important to include cysteine in the diet of the mice.
B) Cysteine residues are involved in disulfide bridges that help form tertiary structure.
C) Cysteine causes bends, or angles, to occur in the tertiary structure of proteins.
D) Cysteine residues are required for the formation of a- helices and fi- pleated sheets.

Question

Quizplus · Accepted Answer

Cysteine residues are able to form covalent disulfide bonds with each other, stabilizing the tertiary structure of proteins. This is important for maintaining the protein's overall conformation and function.

You've Just Sequenced a New Protein Found in Mice and Observe