Expression of hmpA is under the control of the redox active repressor NsrR , whose -LSB- S -RSB- cluster is reversibly inactivated by NO .
Expression of hmpA is under the control of the redox active repressor NsrR , whose -LSB- Fe is reversibly inactivated by NO .
genes _ involved in nitrosative-stress protection under the control of NsrR ( hmpA , , ygbA , hcp , yeaR-yoaG )