preparation of ribosomes using different procedures ( treatment of postmitochondrial-postlysosomal supernatant or microsomes with 1 % triton in 0.15 or 0.5 m kcl and subsequent sucrose gradient centrifugation ; treatment of microsomes with 1.5 % deoxycholate/2 % triton ) results in purified ribosomes which contain an endopeptidase activity detectable by breakdown of ribosomal proteins to trichloroacetic acid soluble split products .
C0035553
ribosomes
C0035552
ribosomal proteins