Fig. 5From: The Xylella fastidosa RTX operons: evidence for the evolution of protein mosaics through novel genetic exchangesClustalW multiple nucleotide sequence alignment of the Xf (Temecula) RTX2 operon N-terminal repeats (sequences 1–3) and the RTX2 N-terminus (sequence 4). N-terminal repeat sequences contain a large inverted repeat region (arrows and shading) that is coincident with a complete loss of homology with the RTX2 N-terminusBack to article page