~25,000 molecules per cell
||Bacteria Staphylococcus aureus
||Maass S et al., Efficient, global-scale quantification of absolute protein amounts by integration of targeted mass spectrometry and two-dimensional gel-based proteomics. Anal Chem. 2011 Apr 1 83(7):2677-84. p.2681 left column top paragraphPubMed ID21395229
||"[Researchers] combined targeted mass spectrometry for the accurate determination of absolute protein abundance of specific proteins with the resolving power of 2-D PAGE to obtain a global view of a large number of protein concentrations."
||"In S. aureus, the alkaline shock protein 23 (Asp23) and
superoxide dismutase SodA2 proved to be most abundant in
growing cells with copy numbers of about 25,000 per cell."