>tr|D5ARX9|D5ARX9_RHOCB Nitrogen fixation protein OS=Rhodobacter capsulatus GN=RCAP_rcc03277 MTMTLDAARGGEMVESPFLAQLVAVIRAEDSHGLWDDKTNSEILREFIVTAEERRSMPII GDPDPELIWRMTKFYDAIGLLVEKRTGCMASQMQKMHHEGFGRVVLIAGKLVVVSKHLRD VHRFGFETWAKLAEAGEKLVESAVATINEFPEAARA