Figure 5.

Comparison of the amino acid sequences of RNases and RNase-related proteins from Arabidopsis (RNS1, RNS2, and RNS3), L. esculentum (Lyco-LE-RNA and Lyco-LX-RNA), L. peruvianum (LYCPER-Sc and LYCPER-S6), and C. sepium (CALSEPRRP). Gaps (deletions) were introduced to maximize the homologies, and identical residues are boxed in gray. The three charged residues involved in the active site of RNases are indicated by (+), and the two aromatic residues, which presumably maintain the conformational stability of the site, are indicated by (°). The sequences of the five conserved regions (C1–C5) identified for plant RNase are boxed.