You have 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? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

D. It will be important to include cysteine in the diet of the mice. ... Best It's A. Cysteine does not cause bends in protein structures (that's proline) and almost any amino acid can be part of an alpha-helix or beta-sheet. ... and has nothing to do with the regular occurrence within a particular protein.

Cysteine residues are involved in disulfide bridges that help form tertiary structures.

Explanation:

Disulfide bridges are important in maintaining the tertiary structure of the protein. An environment that is oxidative promotes disulfide formation, whereas under reducive conditions the disulfide bridge can be broken.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.