ATP synthase subunit a, chloroplastic ATP synthase F0 sector subunit a atpI MNIIPCSIKTLKGLYDISGVEVGQHFYWQIGGFQIHAQVLITSWVVITILLGSVIIAVRNPQTIPTDGQNFFEYVLEFIRDLSKTQIGEEYGPWVPFIGTMFLFIFVSNWSGALLPWKIIQLPHGELAAPTNDINTTVALALLTSAAYFYAGLSKKGLSYFEKYIKPTPILLPINILEDFTKPLSLSFRLFGNILADELVVVVLVSLVPLVVPIPVMFLGLFTSGIQALIFATLAAAYIGESMEGHH F-ATPase subunit IV Key component of the proton channel; it plays a direct role in the translocation of protons across the membrane (By similarity). PA041 ATPI_ORYSA 247