>tr|A4NZB6|A4NZB6_HAEIF Fumarate/nitrate reduction transcriptional regulator OS=Haemophilus influenzae 22.4-21 GN=CGSHiR3021_01477 MKNFVAGAQSGRKIQSGGCAIHCQDCSISQLCIPFTLNEQELDQLDNIIERKKPIQKSQV LFKAGDSLNSIYAIRSGTIKSYTISESGEEQITSFHLPGDLVGFDAITQMQHPSFAQALE TAMVCEIPFDILDDLAGKMPKLRQQILRLMSSEIKSDQEMILLLSKMNAEERLAAFIHNL SKRYSARGFSAREFRLTMTRGDIGNYLGLTVETISRLLGRFQKLGVISVQGKYITINDLN GLIELTGTNKTKITLVK