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Figure 5 | Genome Biology

Figure 5

From: Dynamic diversity of the tryptophan pathway in chlamydiae: reductive evolution and a novel operon for tryptophan recapture

Figure 5

Alignment of TrpEa from S. typhimurium (Sty) with the TrpEa proteins of C. trachomatis (Ctr) and C. psittaci (Cps). The multiple alignment of numerous TrpEa proteins performed as described by Xie et al. [30] was used to assess the retention of critical residues by Ctr and Cps. Catalytic residues established in Sty (see [30]) and conserved throughout the multiple alignment are in blue. Residues interacting with the β subunit are in green. Additional residues in yellow are invariant. The gaps represent the gaps obtained in the overall multiple alignment (data not shown). Arrows point to probable inactivating changes in the Ctr sequence. See Table 2 for organism acronyms and gene identification numbers.

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