Figure 1.

A, Restriction maps of cDNA clones T106 and T91. Solid lines and rectangles indicate the noncoding and coding regions of these clones, respectively. The two ankyrin repeats in T106 are indicated as shaded boxes and the WW domains as black boxes. The corresponding region of T91 was partially deleted, and no ankyrin repeat was present. B, Nucleotide (above) and deduced amino acid (below) sequences of cDNA clones T106 and T91. Lowercase letters indicate the sequences present only in clone T106. The amino acids composing the N-terminal putative signal peptide, ankyrin repeats, and WW domains are represented with broken lines, double underlines, and wavy lines, respectively. Clone T91 lacks the amino acid sequences in the open box, and thus contains no ankyrin repeat. A stop codon, TGA, is represented with an asterisk. The putative polyadenylation signal of C. reinhardtii (Youngblom et al., 1984) is underlined. Accession numbers for clones T106 and T91 are AB004042 and AB004043, respectively.