Ultracentrifugal studies of the variation with physiological state of the ribosomes in Aerobacter aerogenes.
D004754:Enterobacter / Q000254:growth & development*; D008274:Magnesium / Q000494:pharmacology*; D012270:Ribosomes / Q000187:drug effects*; D014461:Ultracentrifugation
D008274:Magnesium