>5ZZ7_1|Chains A, B|Redox-sensing transcriptional repressor Rex 1|Thermotoga maritima MSB8 (243274) MAEKIPKPVSKRLVSYYMCLERLLDEGVEVVSSEELARRLDLKASQIRKDLSYFGEFGKRGVGYNVEHLYDAIGEILGVKKEWKLVVVGAGNIGRAVANYTVMKEKGFRIIGIFDSDPSKIGKEAAPGLTVSDVSELEKFVEEHGVEIGVIAVPAEHAQEIAERLEKAGIKGILNFAPVKIKVSVPVENIDITASLRVLTFEIVRRNS