Table III. Stoichiometry for Rubisco, CF₁, and 20S proteasome α complexes.

Protein	Average abundance (zmol/cell)	Ratio
RbcL	3,253	–
RbcS (1 + 2)	2,185	0.7
CF1 α	395	–
CF1 β	303	0.8
20S Proteasome α subunit A	21	1.0
20S Proteasome α subunit B	23	1.0
20S Proteasome α subunit C	22	–
20S Proteasome α subunit D	20	0.9
20S Proteasome α subunit E	38	1.8
20S Proteasome α subunit F	15	0.7
20S Proteasome α subunit G	34	1.5

Rubisco large subunit, CF₁ α, and 20S proteasome α subunit C were used as the reference for each protein complex, respectively. Subunit ratios between all proteins within each complex are expected to be 1:1.