Palmitoylation of Meh1[SH4]-Vac8. A, membranes expressing Akr1-FLAG, FLAG-Erf2/GST-Erf4, Pfa3-FLAG, Pfa4-FLAG, Pfa5-FLAG, or empty vector (pESC) were incubated with [3H]palmitoyl-CoA and 1 μm myr-Meh1[SH4]-Vac8-myc-6xHIS. Reactions were analyzed by fluorography with an exposure length of 2 days. B, increasing amounts of myr-Meh1[SH4]-Vac8-myc-6xHIS was incubated with [3H]palmitoyl-CoA and either no enzyme (●), 10 nm Pfa3-FLAG (▲), or 10 nm Akr1-FLAG (■). Reactions were analyzed by fluorography and quantitated by densitometry with an exposure length of 2 days. Data are the average of three independent experiments. The error bars represent the standard deviation. Representative films are shown in supplemental figure S3A, and 100% values are shown in supplemental Table 1.