Figure 2

Structure and sequence analyses of plant and animal (6–4) PL orthologues. (a) The local three-dimensional structures around Trp3H in At64 and Xl64. Residues conserved in both (6–4) PLs are shown in light grey. Residues unique to At64 and Xl64 are colored in green and cyan, respectively. (b) and (c) Primary structural analyses of (b) plant and (c) animal (6–4) PL orthologues. The phenylalanine inside the yellow box corresponds to F380 in At64. The histidine corresponding to H382 in At64 is highlighted in red. The electron-transferring Trp4H (W370 in Xl64) is marked in yellow. The serine inside the red frame corresponds to S372 in Xl64.