And so what happens once this H plus ion moves into this section? It binds until the aspartate residue forming the spartic acid, because of spartic acid is more hydrophobic. It wants to move into the core of the inner membrane of the mitochondria. So this rotates and that causes the entire Ce ring to actually rotate. And so what happens is this negative charge of the aspartate 61 on this C subunit basically moves into this position shown here. And this aspartic acid basically that is found within this C submune moves into this position.