HIWI protein alignment.

Amino acid alignment of the HIWI protein (Genbank accession numberAF264004) to the D. melanogaster PIWI protein (Genbank accession number AF104355). Amino acid identities are indicated by identical amino acid matches, whereas mismatches are indicated by a blank space. The + signs refer to positions in which the nature of the residue is conserved as reported by BLASTP homology alignment. Numbering begins at the initiation codon of the PIWI sequence.