Positive Samples: U-251MG, mouse brain, rat brain Immunogen sequence: IPYVKAIDIY LMGCFVFVFL ALLEYAFVNY IFFGKGPQKK GASKQDQSAN EKNKLEMNKV QVDAHGNILL STLEIRNETS GSEVLTSVSD PKATMYSYDS A. GABA, the major inhibitory neurotransmitter in the vertebrate brain, me