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Table 3 Percentages of the patterns for which the hypothesis of equality of “pattern region codon usage (RCU)” and “pattern gene codon usage (GCU)” is rejected, grouped by the specificity of the pattern

From: Dependency of codon usage on protein sequence patterns: a statistical study

Pattern specificity range

Number of valid patterns

Number of patterns with non-equal pattern region codon usage and pattern gene codon usage

Percentages of patterns with non-equal pattern region codon usage and pattern gene codon usage for amino acids

[ 9-12)

12

10

%83.3

[ 12-15)

709

529

%74.6

[ 15-18)

2111

1420

%67.3

[ 18-21)

3792

2503

%66.0

[ 21-24)

3194

2112

%66.1

[ 24-27)

1516

992

%65.4

[ 27-30)

876

572

%65.3

[ 30-33)

444

282

%63.5

[ 33-36)

238

148

%62.2

[ 36-39)

184

130

%70.7

[ 39-42)

185

123

%66.5

[ 42-45)

128

69

%53.9

[ 45-48)

67

44

%65.7

[ 48-51)

57

32

%56.1

[ 51-54)

34

19

%55.9

[ 57-60)

21

7

%33.3

[ 60-63)

12

6

%50.0

  1. The range of pattern specificities are divided to subranges of length 3, and the results are provided for each range of pattern specificities. If an amino acid appears 30 times in a pattern region, and each of its codons appears at least once in this region, we consider the pattern as a valid pattern for the amino acid. The “number of patterns with non-equal pattern region codon usage and pattern gene codon usage” is the number of cases for which the hypothesis of the equality of “pattern region codon usage (RCU)” and “pattern gene codon usage (GCU)” is rejected. The “Percentages of patterns with non-equal pattern region codon usage and pattern gene codon usage for amino acids” column represents the ratio of the number of cases with non-equal codon usages to the number of valid cases. We presented the rows with at least 10 valid patterns.