Additional file 1.

Supplementary material. This file contains six sections. Section 1 contains a histogram of the lengths of SYV enzymes (Fig. S1). Section 2 is devoted to statistics of Uniprot KB data relevant to the three enzymes families used in this paper, and exemplified by the Venn diagram of Fig. S2. Section 3 is devoted to a demonstration of distances between E coli SYQ enzymes (Fig. S3). Section 4 discusses briefly Needleman Wunsch statistics of Uniprot KB (Fig. S4). Section 5 discusses match of short reads to proteins in Uniprot KB (Fig. S5). Section 6 provides links to a Matlab package for the taxa counting algorithm and to a C package for searching SP hits on PPs. The latter includes also a list of all SPs used in this paper.

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Persi et al. BMC Genomics 2012 13:65   doi:10.1186/1471-2164-13-65