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Alignment of nucleotide sequences of SP11–9 and SP11–8 (GenBank accession nos. AB022078 and AB035504, respectively). Gaps (hyphens) were introduced to optimize the alignment. The coding region and the polyadenylation signal consensus sequence for each gene are boxed. The sequence for the putative signal peptide is underlined. Conserved nucleotides are indicated by vertical lines. The arrow indicates the conserved location of the intron.
