ATP synthase F(0) sector subunit b' Component of the F(0) channel, it forms part of the peripheral stalk, linking F(1) to F(0). The b'-subunit is a diverged and duplicated form of b found in plants and photosynthetic bacteria (By similarity). ATP synthase subunit b', chloroplastic F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation (By similarity). ATPG 222 MANMLVASSSKTLPTTTTTTITPKPKFPLLKTPLLKLSPPQLPPLKHLNLSVLKSAAITATPLTLSFLLPYPSLAEEIEKASLFDFNLTLPIIMAEFLFLMFALDKIYYTPLGDFMDKRDASIKEQLSGVKDTSSEVKQLEEQANAVMRAARAEISAALNKMKKETQLEVEAKLAEGRKKIEVELQEALGSLEQQKEDTIKSLDSQISALSDDIVKKVLPVS ATPase subunit II ATPX_SPIOL