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. 2022 Apr 18;53:30. doi: 10.1186/s13567-022-01049-6

Table 1.

Strains and plasmids used in this study

Strains or plasmids Description Reference
Strains
 APEC40 wild-type strain, isolated from sick chicken This study
 APEC40-△yqeH yqeH deletion mutant in APEC40 This study
 APEC40-C△yqeH APEC40-△yqeH with plasmid pSTV28-yqeH This study
 DH5a F-,△(lacZYA-argF)U169,recA1,endA1,hsdR17 (rk-,mk +), phoA,supE44, γ- TIANGEN
Plasmids
 pKD46 Amp; expresses γ red recombinase This study
 pKD3 Cm gene, template plasmid This study
 pCP20 Cm, Amp, yeast Flp recombinase gene, FLP This study
 pSTV28 Cm, lacZ Takara
 pSTV28-yqeH pSTV28 derivative harboring yqeH gene This study