BrnA is family of antitoxins that neutralises the toxin BrnT, Pfam:PF04365. It consists of 3 alpha-helices and a C-terminal ribbon-helix-helix DNA binding domain. As in other toxin-antitoxin systems, BrnA negatively autoregulates the brnTA operon and ...
BrnA is family of antitoxins that neutralises the toxin BrnT, Pfam:PF04365. It consists of 3 alpha-helices and a C-terminal ribbon-helix-helix DNA binding domain. As in other toxin-antitoxin systems, BrnA negatively autoregulates the brnTA operon and has higher affinity for the DNA operator when complexed with BrnT. It dimerises with two molecules of its toxin BrnT [1].
Ribonuclease toxin, BrnT, of type II toxin-antitoxin system
BrnT is a ribonuclease toxin of a type II toxin-antitoxin system that exhibits a RelE-like fold. The antitoxin that neutralises this toxin is Pfam:PF14384. BrnT is found in bacteria, archaea, bacteriophage, and plasmids. BrnT-BrnA forms a 2:2 tetrame ...
BrnT is a ribonuclease toxin of a type II toxin-antitoxin system that exhibits a RelE-like fold. The antitoxin that neutralises this toxin is Pfam:PF14384. BrnT is found in bacteria, archaea, bacteriophage, and plasmids. BrnT-BrnA forms a 2:2 tetrameric complex and autoregulates its own expression, which is induced by a number of different environmental stresses. Expression of BrnT alone results in cessation of bacterial growth which can be rescued after subsequent expression of BrnA [1].
