>tr|D5ANJ8|D5ANJ8_RHOCB Nitrogenase iron-iron protein delta chain OS=Rhodobacter capsulatus GN=anfG MTDISEKLDPLVDYIMKNCLWQFNSRGWDRLKQNAGILSQTCEILCGEEPVHETAMDRCY WVDAVILSRAYKARFPWLMAMTKPEIKSLFKALHEKIDHLTVHGSLNTELTVPHY