ATPB_ENTHR Produces ATP from ADP in the presence of a proton gradient across the membrane. The catalytic sites are hosted primarily by the beta subunits (By similarity). 468 atpD MSSGKIVQVIGPVVDVEFSLDQSLPDINNALVVYKNDEKKSKVVLETALELGDGVIRTIAMESTDGLQRGMEVIDTGKAISVPVGKDTLGRVFNVLGDTIDLGSSFPEDAERSEIHKKAPSFDELSTSTEILETGIKVIDLLAPYLKGGKVGLFGGAGVGKTVLIQELIHNIAQEHGGISVFTGVGERTREGNDLYYEMKDSGVIEKTAMVFGQMNEPPGARMRVALTGLTIAEYFRDVEGQDVLLFIDNIFRFTQAGSEVSALLGRMPSAVGYQPTLATEMGQLQERITSTKKGSITSIQAIYVPADDYTDPAPATAFAHLDATTNLERKLTEQGIYPAVDPLASSSSALAPEIVGEEHYKVATEVQHVLQRYRELQDIIAILGMDELSDQEKVLVSRARRVQFFLSQNFNVAEQFTGLPGSYVPVEETVKGFREILEGKYDDLPEEAFRSVGRIEDVVEKAKKLGY F-ATPase subunit beta ATP synthase F1 sector subunit beta ATP synthase subunit beta