Human CHRNB1 Recombinant Protein (N-His) is a recombinant protein expressed in E. coli, spanning Arg51-Lys244, 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. Acetylcholine receptor subunit beta is a ~56 kDa protein. After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane. For research use only.