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Table 1 The population of rare codon clusters is markedly higher at the termini relative to the non-terminal positions

From: Increased incidence of rare codon clusters at 5' and 3' gene termini: implications for function

  Percent of genes with rare codon clustersa
  5' Non-terminal average 3'
E. coli 8.49 * 2.35 ± 0.32 4.60 *
A. tumefaciens 9.44 * 0.96 ± 0.24 2.87 *
B. anthracis 1.08 0.47 ± 0.15 1.03
B. cereus 1.21 0.60 ± 0.16 1.33
B. fragilis 5.68 3.52 ± 0.37 4.10
B. subtilis 4.83 4.04 ± 0.37 5.08
B. pertussis 2.01 * 0.14 ± 0.06 0.65 *
B. melitensis 16 M 9.97 * 0.86 ± 0.21 3.49 *
Burkholderia sp. 383 1.97 * 0.36 ± 0.09 0.72
C. burnetii 0.55 0.26 ± 0.17 0.55
C. neoformans 11.12 11.06 ± 1.10 21.24 *
D. radiodurans 4.54 * 0.92 ± 0.20 2.27
E. carotovora 10.28 * 3.59 ± 0.42 6.62 *
H. pylori 1.64 0.73 ± 0.31 0.88
N. meningitidis 4.69 2.45 ± 0.63 4.59
Nostoc sp. PCC 7120 4.22 2.39 ± 0.30 4.26
P. fluorescens 3.86 * 0.85 ± 0.16 2.11 *
R. metallidurans CH34 2.77 * 0.57 ± 0.14 2.13 *
S. entericia 8.49 * 2.47 ± 0.29 4.90
S. typhimurium 8.70 * 2.55 ± 0.32 5.19 *
S. flexneri 8.28 * 2.63 ± 0.65 6.12
S. meliloti 2.72 * 0.42 ± 0.11 1.76 *
S. aureus 0.64 0.16 ± 0.11 0.56
T. thermophilus 0.73 0.25 ± 0.14 2.02 *
X. fastidiosa 7.76 * 3.21 ± 0.63 5.85
Y. pestis 9.66 * 3.18 ± 0.83 7.54
  1. a5' and 3' values that are greater than 7 standard deviations from the average of the non-terminal positions are denoted with an asterisk (*).