Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. 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. Part of the complex F(0) domain. Forms an homomeric c-ring of several subunits which is part of the complex rotary complex (Probable). Subunit of the F-type ATPase which has 2 components, CF(1) - the catalytic core - and CF(0) - the membrane proton channel. Trimethylated by ATPSCKMT at Lys-84. Methylation may be required for proper incorporation of the C subunit into the ATP synthase complex and mitochondrial respiration. 76% embryonic lethal, 24% larval arrest. Derived from a bicistronic mRNA produced by trans-splicing that also produces excitatory amino acid transporter (glt-1). Belongs to the ATPase C chain family. Truncated N-terminus. Truncated N-terminus.