>9RBZ_1|Chains A, B, C, D|HD domain/sensory box protein|Nitratidesulfovibrio vulgaris str. Hildenborough (882) DITELVDAQERSRKLVQQTIDAFITAIETKAPYLAGHSRGMSQFATAIARQMGLGERDVATVETAANLSQVGKIYVPSRLLTKPGALTAEEKAIVEEHVLHARRTLEHIEFDLPILDAIVQMNEHPDGTGYPEHLKGDAIGIHARILAVANAFCAMVRPRSYRPALGVDAVIGVLRKEGGSFDAGVVDALARLLASPAGERLLESLDVRQG