Specific or shared mini-proteins in phyla.

Note: The averages of species-specific, phylum-shared and domain-shared are 58.79%, 6.20% and 0.73%, respectively. Because Actinobacteria contains only one class, class-specific mini-proteins are equal to the phylum-specifics'; similarly, Spirochaetes contains one class and one order, so the order-specific mean the phylum-specific. The hypothetical proteins account for 82.80%, 86.51%, 85.77%, 79.91%, 84.49% and 95.37% of the species-specific in Euryarchaeota, Actinobacteria, Cyanobacteria, Firmicutes, Gammaproteobacteria and Spirochaetes, respectively.