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Table 1 Copy numbers of gap and mtg gene detected by real-time fluorescent quantitative PCR

From: Improved the expression level of active transglutaminase by directional increasing copy of mtg gene in Pichia pastoris

Strain

Value Ct

Gene copy(10n)

Number of copies of mtg gene in P. Pichia genome (mtg copy number/gap copy number)

mtg gene

gap gene

mtg gene

gap gene

1

14.14 ± 0.27

16.49 ± 0.17

5.58 ± 1.02

1.66 ± 0.19

3.36 ± 0.24

2

14.93 ± 0.28

16.67 ± 0.22

3.29 ± 0.50

1.48 ± 0.18

2.21 ± 0.11

3

14.97 ± 0.30

18.23 ± 0.23

3.20 ± 0.63

5.60 ± 0.71

5.72 ± 0.35

4

15.30 ± 0.41

19.05 ± 0.17

2.56 ± 0.55

3.36 ± 0.31

7.62 ± 1.11

  1. Datas are presented as mean ± SD of triplicate observations. Strain 1: the clone with the highest enzyme activity. Strain 2,3,4:another three positive clones