Figure 4

Maximum likelihood phylogenetic tree of APR and PAPR. The outgroup contains alignable sequences from archaea, annotated as APR/PAPR, but not proven experimentally. Numbers at nodes are (left to right) Bayesian posterior probabilities, maximum likelihood bootstraps and distance bootstraps. Support for nodes with less that 60 bootstraps by both methods are not show. Where tree topology differed or bootstraps by one method are less than 60, a dash is shown. A filled circle indicates the presence of a plastid targeting pre-sequence; an open circle indicates a mitochondrial targeting pre-sequence; a filled star indicates a C terminal thioredoxin moiety; an open star indicates fusion to ATPS. The shaded boxes contains isoforms that contain the sequence CCXXRR/K at positions 202–207 and GCXPCT at positions 293–98 (relative to A. thaliana AT4G04610) while those outside the shaded boxes contain the sequence Y/FXXXXK and GDXXXT/S at each position respectively. The bar indicates the number of amino acid changes per branch length.