Nitric oxide reactivities of the two globins of the foodborne pathogen Campylobacter jejuni: Roles in protection from nitrosative stress and analysis of potential reductants

We present the most persuasive evidence to date that Cgb, but not Ctb, confers tolerance to NO and RNS by reaction with NO. Since certain hypotheses for the mechanism of haem re-reduction in E. coli following the reaction with NO are not proven, the mechanisms of reduction in C. jejuni now require challenging experimental evaluation.