Figure 1. Expression profile of arylsulfatase-related genes. A: Thirteen tissues expressing ARSI were described based on the expressed sequence tag (EST) counts of UniGene database. The total EST counts and the total number of tissues expressing each gene are listed in the inset table. B: Arylsulfatase-related gene expressions in human cell lines were analyzed using RT–PCR. A eukaryotic elongation factor 1 alpha 1 (EEF1A1) gene was used as an internal control.