in addition to the ribosomal proteins l2 , l10 , l7/l12 and l20 of the large subunit and s6 and s18 of the small subunit , the 16s rrna became labelled when radioactive uga was crosslinked to the ribosome in the presence of rf-2 .
C3537372
16s rrna
C0035553
ribosome