>cd01977 Nitrogenase_VFe_alpha Nitrogenase_VFe_alpha -like: Nitrogenase VFe protein, alpha subunit like. This group contains proteins similar to the alpha subunits of, the VFe protein of the vanadium-dependent (V-) nitrogenase and the FeFe protein of the iron only (Fe-) nitrogenase Nitrogenase catalyzes the ATP-dependent reduction of dinitrogen (N2) to ammonia. In addition to V- and Fe- nitrogenases there is a molybdenum (Mo)-dependent nitrogenase which is the most widespread and best characterized of these systems. These systems consist of component 1 (VFe protein, FeFe protein or, MoFe protein respectively) and, component 2 (Fe protein). MoFe is an alpha2beta2 tetramer, V-and Fe- nitrogenases are alpha2beta2delta2 hexamers. The alpha and beta subunits of VFe and FeFe are similar to the alpha and beta subunits of MoFe. For MoFe each alphabeta pair contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha sub

Probab=94.78 E-value=0.37 Score=27.73 Aligned_cols=141 Identities=13% Similarity=0.116 Sum_probs=70.0 Q ss_pred HHHHHHHHHHHHHHHHHHHCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEEEECCCHHH------HHHHHCCC Q ss_conf 655556789999999974218656588998999986312223589998503002781462062157------78987498 Q gi|254780717|r 133 LNPLNVQYIAHVIAMELIKKDPRNKIIYEKNEEEFKNQLSQLDKELHSILQPVEKKKIIVFHEAYR------YFASHYNL 206 (294) Q Consensus 133 l~p~n~~~~a~~I~~~L~~~dP~~~~~y~~N~~~~~~~L~~l~~~~~~~~~~~~~~~~i~~H~a~~------Yf~~~~gl 206 (294) T Consensus 242 ~Gi~~T~~~Lr~ia~~~g~~~~-~e~~i~~e~~~~~~~l~----~~~~---~l~GKkv~i~~g~~~~~~~~~~~~~ElGm 313 (415) T cd01977 242 FGFEYCAESLRKIGAFFGIEDR-AEAVIAEEMAKWKPELD----WYKE---RLKGKKVCIWTGGPKLWHWTKVIEDELGM 313 (415) T ss_pred CCHHHHHHHHHHHHHHHCCCHH-HHHHHHHHHHHHHHHHH----HHHH---HCCCCEEEEECCCHHHHHHHHHHHHHCCC T ss_conf 7746799999999998299411-77889999999999999----9987---57399899975855899999999986685 Q ss_pred CEECCCCCCCCCCCHHHHH-------------------HHHHHHHHCCCCEEEEECCCCHHHHHHHHHHHCCCEEEECCC Q ss_conf 1200346775444978899-------------------999999754993899818889789999999719908998053 Q gi|254780717|r 207 SIVTFPMSHSVFMGAASLR-------------------NIRSKIISDKISCLFYGPEFDSKIIRSITNDTGVMSAILDPE 267 (294) Q Consensus 207 ~~~~~~~~~~~~~s~~~l~-------------------~~~~~ik~~~v~~if~e~~~~~~~~~~ia~e~~~~~~~ld~~ 267 (294) T Consensus 314 evv~~~~~~~---~~~~~e~~~~~~~~~~~~v~~~~~~e~~~~i~~~~pDlliG~~-~----~~~ia~klgiP~~~~~~~ 385 (415) T cd01977 314 QVVAMSSKFG---HQEDFEKVIARGGEGTIYIDDPNELEFFEILEMLKPDIILTGP-R----VGELVKKLHVPYVNIHAY 385 (415) T ss_pred EEEEECCCCC---CHHHHHHHHHHCCCCEEEEECCCHHHHHHHHHHCCCCEEEECC-C----CCEEEEECCCCEEEECCC T ss_conf 8999605458---8789999997478880998689899999999736999999658-7----441102248987980587 Q ss_pred CCCCCCCCCCHHHHHHHHHHHH Q ss_conf 3678778167899999999999 Q gi|254780717|r 268 GMLIAEGPELYFQLMRSMSNSI 289 (294) Q Consensus 268 ~~~~~~~~~~Y~~~m~~n~~~l 289 (294) T Consensus 386 ~~~p~~GY~G~~~l~~~I~n~i 407 (415) T cd01977 386 HNGPYMGFEGFVNLARDMYNAI 407 (415) T ss_pred CCCCCCHHHHHHHHHHHHHHHH T ss_conf 6789510874999999999984

HHsearch alignment for GI: 254780717 and conserved domain: cd01977