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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.