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Fig. 4. Multiple sequence alignment of DSX homologues from D. melanogaster, B.
tryoni, M. domestica, M. scalaris, B. mori and A. gambiae. The
sequence is divided into (A) the region that is common to DSXF and
DSXM, (B) the conserved female-specific parts and (C) the highly
divergent male-specific regions. The DBD/OD1 and OD2 domains are indicated.
Black boxes represent areas of amino acid identity; gray boxes represent areas
of amino acid similarity; the asterisks indicate six amino acids whose
replacement has been shown to abolish DNA-binding activity in D.
melanogaster.