Uptake hydrogenase large subunit Hydrogenase subunit alpha This enzyme recycles the H(2) produced by nitrogenase to increase the production of ATP and to protect nitrogenase against inhibition or damage by O(2) under carbon- or phosphate-limited conditions. MSSLPNASQLDKSGRRIVVDPVTRIEGHMRCEVNVDASNVITNAVSTGTMWRGLEVILKGRDPRDAWAFVERICGVCTGTHALTSVRAVEDALDIRIPYNAHLIRNLMDKTLQVHDHIVHFYHLHALDWVNPVNALKADPKATSALQQAVSPAHAKSSPGYFRDVQTRLKKFVESGQLGLFSNGYWDNPAYKLPPEADLMAVAHYLEALDLQKDIVKIHTIFGGKNPHPNYMVGGVACAINLDDVGAAGAPVNMTSLNFVLERIHEAREFTRNVYLPDVLAVAGIYKDWLYGGGLAAHNLLSYGTFTKVPYDKSSDLLPAGAIVGGNWDEVLPVDVRDPEEIQEFVSHSWYSYADETKGLHPWDGVTEPKFELGPNTKGSRTHIQEIDEAHKYSWIKAPRWRGHAMEVGPLARYIIAYASGREYVKEQVDRSLAAFNQSTGLNLGLKQFLPSTLGRTLARALECELAVDSMLDDWQALVGNIKAGDRATANVEKWDPSTWPKEAKGVGINEAPRGALGHWIRIKDGKIENYQAIVPTTWNGTPRDHLGNIGAYEAALLNTRMERPDEPVEILRTLHSFDPCLACSTHVMSPDGQELTRVKVR MBHL_AZOVI Hydrogenlyase 602 hoxG Membrane-bound hydrogenase large subunit