
Fig. 7. MASK is a large protein containing ankyrin repeats and a KH domain. (A) Genomic structure of the mask locus (GenBank accession number AF425651). The light gray boxes represent the stretches of ankyrin repeats, and the dark gray box represents the KH domain. Arrowheads indicate the positions of amino acids that have been changed to stop codons in mutant alleles. (B) Stretches of homology between MASK and predicted proteins from cDNA sequences from other species. Dark gray shading indicates identical residues, and light gray shading indicates similar residues.