FIG. 1.

Sequence alignment of the kinase domains of Pkn1 and PknD. (A) Amino acid sequence alignment between the consensus motifs of prototype eukaryotic Ser/Thr kinases and the N-terminal domains of the ORFs encoding putative protein Ser/Thr kinases Pkn1 and PknD of C. trachomatis serovar L2. The regions corresponding to subdomains I to XI proposed for the Ser/Thr kinases are underlined. The conserved amino acids within each different motif are in boldface type. The residues are marked on the left. (B) Comparison of conserved motifs and amino acids in the kinase domain of Pkn1 and PknD. Conserved amino acids in each motif are in boldface type.