The mgtC and pagC genes are both PhoP-activated genes required for intramacrophage growth [ 2,5 -- 7 ] .
This motility requires the PhoP-activated mgtA , mgtC , and pagM genes , which specify a Mg2 + transporter , an inhibitor of Salmonella 
This is because the PhoP protein , virulence , activates mgtC transcription directly by binding to recruiting RNA polymerase .
This is because the PhoP protein , virulence , activates mgtC transcription directly by binding to the mgtC promoter .
This is because the PhoP protein , virulence , activates mgtC transcription directly by binding to the mgtC promoter .
This is because the PhoP protein , a major regulator of Salmonella , activates mgtC transcription directly by binding to recruiting RNA polymerase .
This is because the PhoP protein , a major regulator of Salmonella , activates mgtC transcription directly by binding to the mgtC promoter .
This is because the PhoP protein , a major regulator of Salmonella , activates mgtC transcription directly by binding to the mgtC promoter .
Although PhoP activates mgtC transcription initiation from a single promoter located in front of the mgtC gene , a computational approach found two other PhoP-binding sites .
These effects are not specific to the phoP gene because they were also observed with the PhoP-activated mgtC gene ( Fig. 2B ) .