Used in neuroscience and biochemical research to quantify levels of tryptophan hydroxylase 2 (TPH2) in rat tissue samples, particularly in brain regions such as the raphe nuclei. This ELISA kit enables researchers to study serotonin biosynthesis pathways, as TPH2 is the rate-limiting enzyme in the production of serotonin in the central nervous system. It is commonly applied in studies related to mood disorders, depression, anxiety, and neurodevelopmental conditions in rat models. The kit supports high-throughput analysis and provides a reliable method for measuring TPH2 protein concentration in cell lysates or tissue homogenates, aiding in the evaluation of experimental treatments, genetic modifications, or pharmacological interventions affecting serotonergic function.