The organization of 14 axons cov~rlnlft 97% or the eDNA sequence of human c~rebrosid¢, sulfate activator protein precursor has been determined from two overlapping EMBL,4 human genomic clones extending over 17 kb, All axons ~md exonlintron splic~ junctions and five introns were sequenced, Exon 8 consists of only 9 bp and is involved in rdternative spliclnlt which ~enerates three different mRNAs ofcercbrosidc sulfate activator precursor.Cerebroside sulfate activator protein; Genomic structure; Alternative splicinlI