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. 1999 Jun;120(2):371–382. doi: 10.1104/pp.120.2.371

Figure 4.

Figure 4

Amino acid sequence comparison between newly identified B2 and B3 tobacco POXs and other basic plant POXs. Alignment of the two tobacco POXs B2 and B3 is with peanut PCN2 (Buffard et al., 1990), wheat (Hertig et al., 1991), tobacco P1 (Narita et al., 1995; this work), Arabidopsis ATPEa (Intapruk et al., 1991), and horseradish (Fujiyama et al., 1988) POXs. Identical amino acids are indicated by dots, and gaps introduced to improve alignment and are indicated by dashes. Boxed regions correspond to conserved regions around His residues (I and III) and around helix D, according to the method of Buffard et al. (1990). Conserved His (H) and Cys (C) residues are indicated below POX sequences, as is the putative substrate-binding site (R and Y). Regions conserved in PCN2, B2, and B3 are underlined with asterisks. The accession numbers for the amino acid sequences of tobacco POXs B2 and B3 are P81512 and P81513, respectively.