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Table 1 Results of the systematic optimization of styrene biosynthesis in E. coli BL21(DE3)

From: A systematic optimization of styrene biosynthesis in Escherichia coli BL21(DE3)

Step

Optimization strategy

Strain

Plasmid

Yield

(mg/L)

Improvement

over previous step (%)

Improvement

over original step (%)

1

Enzyme screening and codon optimization

E. coli BL01

pACYC-AtPAL-FDC1

55

–

–

2

Plasmid optimization

E. coli BL05

pTrc-AtPAL-FDC1

103

187

187

3

Co-expression of aroF and pheA

E. coli BL0501

pTrc-AtPAL-FDC1 and pACYC-aroF-pheA

210

203

382

4

Co-expression of aroF, pheA, ppsA, and tktA

E. coli BL0801

pTrc-AtPAL-FDC1-ppsA-tktA and pACYC-aroF-pheA

275

131

500

5

Expression time optimization

E. coli BL0801

pTrc-AtPAL-FDC1-ppsA-tktA and pACYC-aroF-pheA

275

100

500

6

In situ extraction

E. coli BL0801

pTrc-AtPAL-FDC1-ppsA-tktA and pACYC-aroF-pheA-tktA-ppsA

350

127

636