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Table 2 Percentages of the patterns with different “pattern gene codon usage” and “pattern region codon usage”

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

Amino acid Number of codons of amino acid 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
C 2 561 276 %49.2
D 2 809 410 %50.7
E 2 772 393 %50.9
F 2 761 402 %52.8
H 2 609 284 %46.6
K 2 764 367 %48.0
N 2 724 361 %49.9
Q 2 639 310 %48.5
Y 2 668 341 %51.0
I 3 860 565 %65.7
A 4 871 693 %79.6
G 4 937 751 %80.1
P 4 688 526 %76.5
T 4 824 634 %76.9
V 4 894 708 %79.2
L 6 831 739 %88.9
R 6 650 570 %87.7
S 6 724 668 %92.3
  1. We excluded amino acids with exactly one codon. 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.