Table 5 Codon usage variations in optimized cry2Ah1 gene.

From: Expression of cry2Ah1 and two domain II mutants in transgenic tobacco confers high resistance to susceptible and Cry1Ac-resistant cotton bollworm

Preference of codon

Original cry2Ah1 (%)

Optimized cry2Ah1 (%)

F (TTC)

11

100

L (CTC)

2

52

I (ATC)

13

100

V (GTG)

19

55

S (TCC)

6

51

T (ACC)

11

56

A (GCC)

9

25

Y (TAC)

15

96

H (CAC)

33

92

Q (CAG)

23

100

N (AAC)

12

100

K (AAG)

10

100

D (GAC)

8

100

E (GAG)

30

100

C (TGC)

0

100

R (AGG)

5

59

G (GGC)

12

100

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