And what a connotase does is it basically transfers this hydroxyl group, shown in orange, from this carbon onto this carbon here. So that's the only difference between this citrate molecule and the isomer isocytrate. But now this molecule is actually activated, and it's ready to undergo the decryptoxylation step that takes place in step three. Now, by the way, I forgot to mention, if we go back to this citrate molecule here, notice that we color coded this molecule. And that's because this violet region basically comes from this section here, and this second oxygen comes from this water molecule shown in blue. Now, I color coded this orange because this is the molecule that is ultimately being transferred onto this carbon here.