Fusionproteinaminoacids327-450ofmouseGABA-A-R-Beta1 (alsoknownasgamma-aminobutyricacidreceptorsubunitbeta-1,accessionnumberP50571) Rat:99%identity(123/124aminoacidsidentical) Human:95%identity(118/124aminoacidsidentical) <60% identity with GABA-A-R-Beta2 or -Beta3