Description of target: Forms a water-specific channel. Implicated in the generation of saliva, tears, and pulmonary secretions. Required for TRPV4 activation by hypotonicity. Together with TRPV4, controls regulatory volume decrease in salivary epithelial cells.;Species reactivity: Rat;Application: ;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 0.125 ng/mL