>cd01976 Nitrogenase_MoFe_alpha Nitrogenase_MoFe_alpha_II: Nitrogenase MoFe protein, beta subunit. A group of proteins similar to the alpha subunit of the MoFe protein of the molybdenum (Mo-) nitrogenase. The nitrogenase enzyme catalyzes the ATP-dependent reduction of dinitrogen to ammonia. The Mo-nitrogenase is the most widespread and best characterized of these systems. Mo-nitrogenase consists of the MoFe protein (component 1) and the Fe protein (component 2). MoFe is an alpha2beta2 tetramer. Each alphabeta pair of MoFe contains one P-cluster (at the alphabeta interface) and, one molecule of iron molybdenum cofactor (FeMoco) contained within the alpha subunit. The Fe protein contains a single [4Fe-4S] cluster. Electrons are transferred from the [4Fe-4S] cluster of the Fe protein to the P-cluster of the MoFe and in turn to FeMoCo, the site of substrate reduction.

Probab=91.89 E-value=0.98 Score=24.24 Aligned_cols=148 Identities=9% Similarity=0.049 Sum_probs=69.0 Q ss_pred HHHHHHHHHHHHCCCC--EEE-EECCCC--CHHHHHHHHHHHHHHHCCCCEEEECCCCCCCCCCCCCCCCCCHHHHH--- Q ss_conf 7899999999851596--499-987799--99999999999999837988999368331776555761257999997--- Q gi|254780462|r 43 ESIGKRLKPLALTVDS--DFM-IPCNVE--DPSSMDLLFERIKERWETLDFVVHSIAFSDKNELRGPYYNTSRDNFI--- 114 (267) Q Consensus 43 ~~~~~~~~~l~~~~~~--~~~-~~~Dv~--~~~~v~~~~~~~~~~~g~iD~lVnnAg~~~~~~~~~~~~~~~~e~~~--- 114 (267) T Consensus 84 kKL~~aI~ea~~~~~P~kaIfV~sTC~~glIGDDI~aV~~~~~~~~gipVIpv~~~GF~g~s~~--~G~~~a~~al~~~v 161 (421) T cd01976 84 KKLAKAIDEAYELFPLNKGISVQSECPVGLIGDDIEAVARKASKELGIPVVPVRCEGFRGVSQS--LGHHIANDAIRDHI 161 (421) T ss_pred HHHHHHHHHHHHHCCCCEEEEEEECCCHHHHCCCHHHHHHHHHHHCCCCEEEEECCCCCCCCHH--HHHHHHHHHHHHHH T ss_conf 9999999999985797308999923737865568999999987752998899868985775230--68899999999984 Q ss_pred ---------HHHHCCCCHHHHHHHH---CCCCCCCCC-EEEE-EEEEEEC---CCCCC-CCCCHHHHHHHHHHHHHHHHH Q ss_conf ---------7650166112322210---022244684-1689-8875201---45643-210000015677631477998 Q gi|254780462|r 115 ---------QTMLVSCFSFTEIVRR---AAQLMPHGG-AMIT-LTYGGSM---RVVPN-YNAMAPAKSALESSTKYLACD 176 (267) Q Consensus 115 ---------~~~~vn~~~~~~~~~~---~~~~~~~~G-~II~-isS~~~~---~~~~~-~~~Y~asKaal~~ltr~lA~E 176 (267) T Consensus 162 v~~~~~~~~~~~~iNiige~ni~gd~~~i~~lL~~mGi~V~~~~tgd~t~~di~~~~~A~lNvv~C~~~~~~~A~~le~~ 241 (421) T cd01976 162 LGKRNEFEPTPYDVNIIGDYNIGGDAWASRILLEEMGLRVVAQWSGDGTLNEMENAHKAKLNLIHCYRSMNYIARMMEEK 241 (421) T ss_pred CCCCCCCCCCCCCEEEECCCCCCCCHHHHHHHHHHCCCCEEEEEECCCCHHHHHHCCCCCEEEEECHHHHHHHHHHHHHH T ss_conf 16688778898417997556676329999999998398379998089979999732007699885357999999999998 Q ss_pred HHHHCCEEEEECCCCCCC Q ss_conf 421085897562287268 Q gi|254780462|r 177 YGGMNIRINAISAGPVRT 194 (267) Q Consensus 177 l~~~gIrVNaIaPG~i~T 194 (267) T Consensus 242 yGiP~~~~~f--~Gi~~T 257 (421) T cd01976 242 YGIPWMEYNF--FGPTKI 257 (421) T ss_pred HCCCEEEECC--CCHHHH T ss_conf 6989695156--587999

HHsearch alignment for GI: 254780462 and conserved domain: cd01976