Fig. 3. Wild-type syntaxin suppresses the volatile general anesthetic resistance of truncated syntaxins. (  A ) Semidominance and rescue of the  md130 isoflurane resistance. Locomotion measured by dispersal index is plotted as a function of isoflurane concentration.  md130 ;pTX(fl) (MC72;  table 1) is  unc-64(md130) transformed with a full-length syntaxin genomic construct.  md130 /+ is heterozygous for the  md130 mutation. (  B ) Summary of isoflurane EC⁵⁰s ± SE of the fit from A. *  P < 0.01.