In Salmonella , five transcription factors have been implicated : hmp transcription is repressed by NsrR .
In E. coli , five transcription factors have been implicated : hmp transcription is repressed by NsrR .
In S. Typhimurium , previous studies have determined that NsrR negatively regulates the expression of the hmp genes .
NsrR inhibits hmp expression .
NsrR inhibits hmp transcription .