>cd02040 NifH NifH gene encodes component II (iron protein) of nitrogenase. Nitrogenase is responsible for the biological nitrogen fixation, i.e. reduction of molecular nitrogen to ammonia. NifH consists of two oxygen-sensitive metallosulfur proteins: the mollybdenum-iron (alternatively, vanadium-iron or iron-iron) protein (commonly referred to as component 1), and the iron protein (commonly referred to as component 2). The iron protein is a homodimer, with an Fe4S4 cluster bound between the subunits and two ATP-binding domains. It supplies energy by ATP hydrolysis, and transfers electrons from reduced ferredoxin or flavodoxin to component 1 for the reduction of molecular nitrogen to ammonia.

Probab=94.76  E-value=0.069  Score=31.53  Aligned_cols=34  Identities=26%  Similarity=0.270  Sum_probs=31.4

Q ss_pred             EEEEECCCCCCHHHHHHHHHHHHHHCCCCEEEEE
Q ss_conf             8998678887979999999999997798199987
Q gi|254780218|r    6 FISFEGIEGAGKTTHISLLKRFLQRKNYDVHVTR   39 (225)
Q Consensus         6 ~I~iEGiDGsGKsTq~~~L~~~L~~~g~~v~~~~   39 (225)
T Consensus         3 ~Iai~GKGGVGKTTtavNLA~aLa~~GkkVlliD   36 (270)
T cd02040           3 QIAIYGKGGIGKSTTTQNLSAALAEMGKKVMIVG   36 (270)
T ss_pred             EEEEECCCCCCHHHHHHHHHHHHHHCCCEEEEEC
T ss_conf             8999799857789999999999998799499986