>tr|M9YEK5|M9YEK5_AZOVI Fe-only nitrogenase, beta subunit OS=Azotobacter vinelandii CA6 GN=anfK
MTCEVKEKGRVGTINPIFTCQPAGAQFVSIGIKDCIGIVHGGQGCVMFVRLIFSQHYKES
FELASSSLHEDGAVFGACGRVEEAVDVLLSRYPDVKVVPIITTCSTEIIGDDVDGVIKKL
NEGLLKEKFPDREVHLIAMHTPSFVGSMISGYDVAVRDVVRHFAKREAPNDKINLLTGWV
NPGDVKELKHLLGEMDIEANVLFEIESFDSPILPDGSAVSHGNTTIEDLIDTGNARATFA
LNRYEGTKAAEYLQKKFEIPAIIGPTPIGIRNTDIFLQNLKKATGKPIPQSLAHERGVAI
DALADLTHMFLAEKRVAIYGAPDLVIGLAEFCLDLEMKPVLLLLGDDNSKYVDDPRIKAL
QENVDYGMEIVTNADFWELENRIKNEGLELDLILGHSKGRFISIDYNIPMLRVGFPTYDR
AGLFRYPTVGYGGAIWLAEQMANTLFADMEHKKNKEWVLNVW