Figure 4.

Subdomain organization of the Sag1 (A) and Sad1 (B) agglutinin shafts from C. incerta. Repeating PPSPX motifs are in uppercase letters; PPX motifs are in uppercase in subdomains 2A and 2E. Nonrepeating residues and nonconforming positions in PPSPX units in 2B, 2D, and 2E are in lowercase. Repeats in 2C subdomains are aligned, with deviations from repeats in italics. Position judged to be missing is denoted with an asterisk (*). Block interruptions in subdomains 2A are indicated with angle brackets (< >). Format as in figure 7 of Ferris et al. (2005) for C. reinhardtii; alternative presentations of 2E subdomain sequences in Figure 5.