Volatile anesthetics’ effect on glycine responses in homomeric α1 wild-type, α1(M287L) and α1(Q266I) expressed in Xenopus oocytes. Isoflurane (0.3 mM) and chloroform (1 mM) potentiation of glycine responses (with a concentration that induced a current that is 5% of the maximal current, effective concentration 5, or EC5) in A) α1 wild-type (n= 6) and α1(M287L) (n= 5), and B) α1 wild-type (n= 4) and α1(Q266I) (n= 4). Values are means ± S.E.M.; *p< 0.01 versus corresponding wild-type, Student’s t-test analysis.