Figure 2.

Domain Organization of the Cellulose Synthases from Phytophthora sp.

The predicted gene products share 20 to 94% sequence similarity. Total amino acids (aa) are given in parentheses after the name of each protein. Sequences are aligned according to the position of domain B containing the QXXRW (B2) motif (dotted line). The proteins contain regions similar to cellulose synthases and to other glycosyltransferases. Several transmembrane domains are also predicted. Phytophthora CesA1, CesA2, and CesA4 share the greatest sequence similarity and are predicted to contain PH domains toward the N terminus of each protein. The domain organizations of CesA from Arabidopsis and A. variabillis are given for comparison.