So this purple structure that contains the half channels actually remains stationary. It's the searing that actually rotates. And as that searing rotates it causes this red section, the gamma structure and the blue section, the epsilon structure to actually rotate. And even though the gamma epsilon central stalk actually rotates through the central cavity of the alpha three beta three Heximer because this A subunit does not rotate and the A subunit is connected to this delta structure through these 2D subunits. This entire alpha three beta three hexamer doesn't rotate as well. So this alpha three beta three heximur structure remains stationary because it is connected via this structure to this stationary A subunit of the f not region.