Skip to main content

Table 1 Strains, plasmids, and primers used in this study

From: Gene modification of Escherichia coli and incorporation of process control to decrease acetate accumulation and increase ʟ-tryptophan production

Name

Characteristics

Source

Strains

 BCTRP

E. coli ΔtrpR Δtna, aroG fbr trpE fbr DCBA AmR

Lab collection

 BCTRPP

Derived from BCTRP, but Δpta

This study

 BCTRPG

Derived from BCTRP, but ΔptsG

This study

 BCTRPPG

Derived from BCTRP, but Δpta and ΔptsG

This study

Plasmids

 pKD46

AmR, λ Red-expressing vector

Datsenko and Wanner (2000)

 pKD3

CmR, template vector

Datsenko and Wanner (2000)

 pCP20

AmR, CmR, FLP-expressing vector

Datsenko and Wanner (2000)

Primers

pta-P1a

5′-GCTGGCGGTGCTGTTTTGTAACCCGCCAAATCGGCGGTAACGAAAGAGGATAAACCTTGAGCGATTGTGTAGGCTGGAG-3′b

This study

pta-P2a

5′-TAGTGATTATTTCCGGTTCAGATATCCGCAGCGCAAAGCTGCGGATGATGACGAGATAACGGCTGACATGGGAATTAGC-3′b

This study

pta-P3

5′-GTTTCGGCAAATCTGGTTTCATC-3′

This study

pta-P4

5′-TGGTAAGTATGCAAAGTGGGATGG-3′

This study

ptsG-P1a

5′-ATGTTTAAGAATGCATTTGCTAACCTGCAAAAGGTCGGTAAATCGCTGATGCTGCCTTGAGCGATTGTGTAGGCTGGAG-3′b

This study

ptsG-P2a

5′-TTAGTGGTTACGGATGTACTCATCCATCTCGGTTTTCAGGTTATCGGATTTAGTACTAACGGCTGACATGGGAATTAGC-3′b

This study

ptsG-P3

5′-AGTTGAAACGTGATAGCCGTC-3′

This study

ptsG-P4

5′-AACGTGGAAGGTTCTATCGTCTAC-3′

This study

  1. aThe underlined sequences indicate 56-nt homology extensions of a target knockout gene