Immunogen sequence: PAEYTAPHPH PAPEYTGQTT VPEHTLNLYP PAQTHSEQSP ADTSAQTVSG TATQTDDAAP TDGQPQTQPS E Highest antigen sequence identity to the following orthologs: Mouse - 96%, Rat - 96%. Ataxin-2 binding protein 1 has an RNP motif that is highly conserved