Additional file 3.

Figure S3. Part A. 3D homology models reconstructed for RecA of the Calyptogena phaseoliformis symbiont. Homology modeling using the Swiss-Model Workspace ( webcite) was based on the 3D structure of Escherichia coli RecA (PDB accession number 1U94: [24]) as a template. A, Alignment of amino acid sequences of Calyptogena clam symbiont RecA and E. coli. RecA. Sequences were aligned with ClustalW. a, RecA sequence from Lys-6 to Pro-331 in E. coli; b, secondary structure of E. coli RecA (1U94). Red rectangles, α-helices; blue arrows, β-strands. c, RecA sequence from Lys-5 to Thr-329 in the symbiont of C. phaseoliformis. d, RecA sequence of N-terminal ORF in the symbiont of C. fausta. e, RecA sequence of C-terminal ORF in the symbiont of C. fausta.

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Kuwahara et al. BMC Evolutionary Biology 2011 11:285   doi:10.1186/1471-2148-11-285