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BioMed Central | Full text | Signature proteins that are distinctive of alpha proteobacteria |
 | | The comparative analyses of genomes provides a valuable resource and a very powerful means for identifying characteristics that are unique to a particular group of species [6,16,27,28,32,35,36]. |
 | | For example the protein CC1652 is absent in the Sphingomonadales while the protein CC1035 is absent in the Rhodospirillales. |
 | | Note that the protein CC2247 exhibits high E values for BLAST hits representing Brucellaceae and Bartonellaceae but this high E value is acceptable due to the very short length of this protein (46 amino acids) and the fact that besides α-proteobacteria no other BLAST hits were observed (Table 3B). |
| www.biomedcentral.com /1471-2164/6/94 (6571 words) |