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Table 2 Plasmids used in this study

From: CcpA represses the expression of the divergent cit operons of Enterococcus faecalis through multiple cresites

Plasmid

Characteristics

Oligonucleotides

Reference or source

pGh9

Thermosensitive plasmid carrying erythromycin resistance

 

[46]

pGEM-T easy

  

Promega

PCR-Blunt II-TOPO

  

Invitrogen

pET28a

  

Novagen

pBM02

pUC18 derivative carrying CRL264 replicon, Pcit (promoter) and chloramphenicol resistance

 

[28]

pTCV-lac

Promoterless vector which allows lacZ fusion construction

 

[26]

pmCitO

pGh9 derivative carrying a 500 bp citO internal fragment

fcitOU, fcitOL

[6]

pET-CcpA

pET28a derivative expressing His6-CcpA

Ef-ccpAU, Ef-ccpAL

This study

pCitO

pBM02 derivative for expressing CitO in E. faecalis

 

[6]

pTCV-PcitHO

 

EfHpromU, EfDpromL

[6]

pTCV-PcitCL

 

EfHpromU, EfDpromL

[6]

pTCV-PcitHO-C 1 C 2

 

EfHpromU, EfbsPcitN

This study

pTCV-PcitHO-C 1 C 2M

 

EfHpromU, EfbsPcitN

This study

pTCV-PcitHO-C 2 C 3

 

EfbscitN, Efint_Lo

This study

pTCV-PcitHO-C 2M C 3

 

EfbscitN, Efint_Lo

This study

pTCV-PcitHO-C 2 C 3M

 

EfbscitN, Efint_Lo

This study

pTCV-PcitCL-C 2 C 3

 

EfbscitN, Efint_Lo

This study

pTCV-PcitCL-C 2 C 3

 

EfbscitN, Efint_Lo

This study

pTCV-PcitCL-C 2 C 3M

 

EfbscitN, Efint_Lo

This study

pTCV-PcitCL-C 2M C 3

 

EfbscitN, Efint_Lo

This study

  

EfbscitN, Efint_Lo

This study

  1. †Oligonucleotide sequences are indicated in Table 3.