Immunogen: Fusion protein amino acids 14-160 (extracellular N-terminus) of rat Navbeta1 (also known as Sodium channel subunit beta-1 and Scn1b, accession number Q00954)
Mouse: 99% identity (146/147 amino acids identical) Human: 97% identity (143/147 amino acids identical) <50% identity with Navbeta2 or Navbeta3