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Table 2 Distribution of leaderless genes in sequenced prokaryotic genomes

From: Leaderless genes in bacteria: clue to the evolution of translation initiation mechanisms in prokaryotes

Group Number1 Avg. Percentage2 (%)
Archaea
Crenarchaeota 21 (/24) 49.5 (6.1, 66.7)
Euryarchaeota 36 (/46) 31.7 (3.8, 63.3)
Nanoarchaeota 1 (/1) 71.8 (71.8, 71.8)
Other Archaea 1 (/1) 41.2 (41.2,41.2)
Bacteria
Acidobacteria 3 (/3) 13.3 (9.7, 19.4)
Actinobacteria 86 (/89) 19.2 (2.3, 29.8)
Aquificae 2 (/5) 26.5 (20.7, 32.4)
Bacteroidetes/Chlorobi 1 (/37) 2.4 (2.4, 2.4)
Chloroflexi 4 (/12) 4.7 (4.0, 5.7)
Deinococcus-Thermus 5 (/5) 39.4 (35.9, 46.1)
Firmicutes 56 (/209) 4.2 (2.4, 16.6)
α-Proteobacteria 2 (/117) 6.3 (4.7, 7.8)
β-Proteobacteria 9 (/71) 6.8 (2.8, 10.6)
γ-Proteobacteria 15 (/239) 4.5 (3.0, 5.7)
δ-Proteobacteria 8 (/33) 15.8 (5.7, 20.6)
ε-Proteobacteria 2 (/26) 2.9 (2.7, 3.2)
Spirochaetes 6 (/18) 3.9 (1.8, 6.9)
Other Bacteria 8 (/20) 7.8 (1.4, 16.1)
  1. 1 The number of genomes having leaderless genes. The numbers in parentheses show how many genomes have been sequenced in these groups.
  2. 2 The average percentages of leaderless genes. The numbers in brackets are the minimum and maximum percentages of leaderless genes in these genomes.