Distribution across the gradient of proteins localized to different subcellular compartments. Distribution of proteins localized to mitochondria, ER, Golgi apparatus, plasma membrane and vacuole for (A) wild type, (B) ap-3β mutant, and (C) ap-4β mutant. Distribution of proteins localized to peroxisomes and plastid for (D) wild type, (E) ap-3β mutant, and (F) ap-4β mutant. Averages for all proteins of a given subcellular location with standard deviation are shown.