Appendix 1—table 3. Estimated numbers of ribosomes per cell.

Direct estimates taken from microscopic examinations; proteomic estimates are from averaging of cell-specific estimates for each ribosomal protein subunit. $V$: cell volume (in μm³); $N_{R,direct}$: directly estimated copies per cell; $N_{R,raw}$: estimated copies per cell based on proteomics studies. See Figure 2—source data 1 for further details.

Species		$V$	$N_{R,direct}$	$N_{R,raw}$	References
Bacteria
Bacillus subtilis		1.44	6000		Barrera and Pan (2004)
				9124	Maass et al. (2011)
Escherichia coli		0.93	72,000		Bremer and Dennis (1996)
			45,100		Fegatella et al. (1998)
			26,300		Fegatella et al. (1998)
			13,500		Fegatella et al. (1998)
			6800		Fegatella et al. (1998)
			55,000		Bakshi et al. (2012)
			20,100
			12,000		Arfvidsson and Wahlund (2003)
				6514	Wiśniewski et al. (2014)
				17,979	Lu et al. (2007)
Legionella pneumophila		0.58	7400		Leskelä et al. (2005)
Leptospira interrogans		0.22	4500		Beck et al. (2009)
				3745	Schmidt et al. (2011)
Mycoplasma pneumonii		0.05	140		Yus et al. (2009)
			300		Seybert et al. (2006)
			140		Kühner et al. (2009)
				255	Maier et al. (2011)
Mycobacterium tuberculosis		0.21	1672		Yamada et al. (2015)
Rickettsia prowazekii		0.09	1500		Pang and Winkler (1994)
Sphingopyxis alaskensis		0.07	1850		Fegatella et al. (1998)
			200		Fegatella et al. (1998)
Spiroplasma melliferum		0.02	275		Ortiz et al. (2006)
Staphylococcus aureus		0.31	54,400		Martin and Iandolo (1975)
Vibrio angustum			27,500		Flärdh et al. (1992)
			8000		Flärdh et al. (1992)
Archaea
ARMAN	undescribed	0.03	92		Comolli et al. (2009)
Eukaryotes
Exophiala dermatitidis		44	195,000		Biswas et al. (2003)
Saccharomyces cerevisiae	haploid	68	200,000		Warner (1999)
			220,000		Yamaguchi et al. (2011)
				134,438	Kulak et al. (2014)
				74,800	Ghaemmaghami et al. (2003)
Schizosaccharomyces pombe		133	150,000		Marguerat et al. (2012)
			500,000		Maclean (1965)
				356,180	Kulak et al. (2014)
				101,099	Marguerat et al. (2012)
Tetrahymena pyriformis		14588	88,900,000		Hallberg and Bruns (1976)
Tetrahymena thermophila		12742	74,000,000		Calzone et al. (1983)
Chlamydomonas reinhardtii	cytoplasm	139	120,500		Bourque et al. (1971)
	chloroplast		55,000
Ostreococcus tauri		0.91	1250		Henderson et al. (2007)
Adonis aestivalis	vegetative	2380	47,700,000		Lin and Gifford (1976)
	transitional	2287	39,066,666
	floral	2690	23,933,333
Glycine max SB-1 cell			9,373,333		Jackson and Lark (1982)
Rhus toxicodendron		1222	2,400,000		Vassilyev (2000)
Zea mays root cell		240,000	25,500,000		Hsiao and (1970)
Hamster, intestinal enterocyte		1890	1,500,000		Buschmann and Manke (1981a, 1981b)
HeLa cell		2800	3,150,000		Duncan and Hershey (1983)
					Zhao et al. (2008)
				4,631,143	Kulak et al. (2014)
Mouse pancreas		1434	1,340,000		Dean (1973)
Rat liver cell		4940	12,700,000		Weibel et al. (1969)