SLC9A4 in the organum vasculosum of the lamina terminalis is a [Na(+)] sensor for the control of water intake.
Sakuta H, Lin CH, Hiyama TY, Matsuda T, Yamaguchi K, Shigenobu S, Kobayashi K, Noda M. Pflugers Arch. 2020 May; 472(5):609-624. Epub 2020 May 6.