Reconstitute with 0.2 mL of distilled water to yield a concentration of 500 μg/mL. Positive Control - WB: MCF-7 Cell, SW620 Cell, HT1080 Cell. IHC: Rat Kidney Tissue IHC-F: Rat Kidney Tissue. Aquaporin 2 (AQP2) is a hormonally regulated water channel loc