>tr|A0A0Q0QMV0|A0A0Q0QMV0_RHOCA Nitrogenase iron-iron protein delta chain OS=Rhodobacter capsulatus GN=SAMN04244550_01161 MTDISEKLDPLVDYIMKNCLWQFNSRGWDRLKQNAGILSQTCEILCGEEPVHETAMDRCY WVDAVILSRAYKARFPWLMAMTKPEIKSLFKALHEKIDHLTVHGSLNTELTVPHY