Human HTR3A Recombinant Protein (N-His) is a recombinant protein expressed in E. coli, spanning Arg46-Arg241, with an N-terminal His tag. Purity: >90% as determined by SDS-PAGE. Supplied lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Applications: ELISA, immunogen, SDS-PAGE and Western blot. 5-hydroxytryptamine receptor 3A is a ~55 kDa protein. Forms serotonin (5-hydroxytryptamine/5-HT3)-activated cation-selective channel complexes, which when activated cause fast, depolarizing responses in neurons. For research use only.