>sp|Q01180|NIFU_RHOSH Nitrogen fixation protein NifU OS=Rhodobacter sphaeroides GN=nifU MLDETGKALDLFFNPRNAGPLEAADAVGTAGSLEVGDAIRLMLRIEAGRVAEARFLAFGG AHAIACGSALTVLVTGLDLAAARAVTPEEIEAAVGGLPAPRRPAAARAWSALQIALAAYE GRTFVAPEPAPVPAPAAAPVRLLAPKHDSQPRIVRDVPLAPAEEARLIAEVIESVRPRLR ADGGDVTLVAVEGSKVRVHLTGACSGCQLAALTLGGLQKRLADTLGRPIRVIPEEKRPLV SIAGAR