6.3.2.42 brain - 725423 6.3.2.42 brain stem - 725423 6.3.2.42 brain stem most abundant 773612 6.3.2.42 central nervous system highest expression levels in the brain stem and spinal cord, almost undetectable in the neocortex 725423 6.3.2.42 cerebellum - 725423 6.3.2.42 cerebellum strong expression is restricted to deep cerebellar nuclei 725423 6.3.2.42 forebrain - 725423 6.3.2.42 hippocampus in hippocampus, the enzyme is detectable in neurons expressing parvalbumin 773612 6.3.2.42 kidney - 725423 6.3.2.42 sciatic nerve - 725423