ATP synthase subunit alpha atpA 509 ATP synthase F1 sector subunit alpha F-ATPase subunit alpha Produces ATP from ADP in the presence of a proton gradient across the membrane. The alpha chain is a regulatory subunit (By similarity). ATPA_SINMW Smed_2924 MDIRAAEISAILKDQIKNFGQEAEVSEVGQVLSVGDGIARVYGLDNVQAGEMVEFPGGIRGMALNLEADNVGVVIFGSDRDIKEGDTVKRTGAIVDVPVGPELLGRVVDALGNPIDGKGPINAKQRARVDVKAPGIIPRKSVHEPMSTGLKAIDALIPVGRGQRELVIGDRQTGKTAIILDTILNQKAIHDNGPEGDKLYCVYVAIGQKRSTVAQFVKVLEERGALQYSIIVAATASDAAPMQYLAPFAGCTMGEYFRDSGKHALIGYDDLSKQAVAYRQMSLLLRRPPGREAYPGDVFYLHSRLLERAAKLNDDNGAGSLTALPVIETQGNDVSAFIPTNVISITDGQIFLETDLFYQGIRPAVNVGLSVSRVGSSAQIKAMKQVAGSIKGELAQYREMAAFAQFGSDLDAATQRLLNRGARLTELLKQPQFSPLKTEEQVAVIFAGVNGFLDKLPVADVGKFEQGLLSYMRSEGKAVLDTIRTEKAISDDTKAKLKAAIDSFAKSFA