Now, once that movement actually takes place, once the movement takes place and the H plus binds onto this aspartate residue, we form aspartic acid. And aspartic acid is not as hydrophilic as aspartate. And so because aspartic acid is actually more hydrophobic, that aspartic acid that is formed when the H plus ion binds until aspartate 61 will want to move into the hydrophobic region of the inner membrane of the mitochondria. And so this subunit here, the C subunit, will tend to rotate. And let's say the rotation is in a clockwise direction. And as this C subunit rotates, it causes the entire C structure to actually rotate with it.