Organization of the murine PCP-2 gene based on Celera genomic sequences. Left to right: Exon number, 3' and 5' splice sites, nucleotide number, exon size, intron size, intron phases and protein domain are shown. Amino acids (standard one letter code) are listed below the encoding nucleotides. D1 and D2 represent the first and second phosphatase domains, respectively; a to i designations indicate the individual exons within a single domain. **Exon not transcribed in brain.