Fusionproteinaminoacids11-664(allbutfirst10aminoacids,encompassingextracellularandcytoplasmicdomains)ofratPannexin-2 (alsoknownasPanx2andPx2,accessionnumberP60571) Mouse:98%identity(645/657aminoacidsidentical) Human:91%identity(564/615aminoacidsidentical) <30% identity with Pannexin-1 and Pannexin-3