Figure 4.

Alignment of deduced amino acid sequences of N. attenuata HMGR (AF542543), N. sylvestris (S24760), N. tabacum (AAB87727), and pepper (Q9XEL8). Missing amino acids are indicated by dashes, and different amino acids are indicated by black shading. A transmembrane domain with two segments located in the N-terminal region and a 349-amino acid residue catalytic domain containing three highly conserved signatures, located in the center of the catalytic domain (1), in a Gly-rich region (2), and in a region containing a His residue (3), are indicated by boxes and gray shading.