Figure 1.
Sequence Alignment of Arabidopsis Rop/RAC GTPases.
(A) Alignment of 11 Arabidopsis Rops/RACs was made with the Clustal algorithm (LASERGENE software; DNASTAR, Inc., Madison, WI). Black boxes denote identical amino acids. Note the divergence of AtRAC7, AtRAC8, and AtRAC10 from the type I Rops/RACs at the C-terminal hypervariable domain.
(B) Alignment of the C-terminal hypervariable domains of AtRAC7, AtRAC8, and AtRAC10 shows conservation between AtRAC7 Cys-196, AtRAC8 Cys-199, and AtRAC10 Cys-202 and between AtRAC7 Cys-203, AtRAC8 Cys-205, and AtRAC10 Cys-209. AtRAC7 Cys-206 and AtRAC8 Cys-205 are part of the putative CaaX box prenylation motifs (rectangles).