Molecular weight of the ribosomes

Range bacteria 2.3 MDa higher eukaryot 4.3MDa lower eukaryotes 3.3 MDa Figure - link MDa
Organism Various
Reference Melnikov S et al., One core, two shells: bacterial and eukaryotic ribosomes. Nat Struct Mol Biol. 2012 Jun 5 19(6):560-7. doi: 10.1038/nsmb.2313. p.560 left column top paragraph & p.562 figure 2PubMed ID22664983
Primary Source See refs beneath figure
Method Figure 2 is based on X-ray and cryo-EM structures
Comments p.560 left column top paragraph:"The molecular weight of the ribosomes may vary from 2.3 MDa in bacteria to 4.3 MDa in higher eukaryotes, without substantially changing the RNA/protein ratio."
Entered by Uri M
ID 111560