So we have a negative charge of negative one and a charge of negative two. And if we basically decrease the distance between the negative charge, that will destabilize this molecule. And so we have an enzyme known as phosphoglycerate mutates. A mutate is simply an enzyme that takes a group on the molecule and changes its position. And so we have the phosphollycerate. So phosphorlycerate mutates will be the enzyme that will take this group and bring it onto the second carbon.