on the basis of these experiments a possible role of biogenic polyamines in vivo may be discussed : as essential components of procaryotic and eucaryotic ribosomes they may together with ribosomal factors facilitate trna-ribosome binding during protein biosynthesis by opening the trna tertiary structure , thus making the trna 's tpsic-loop available for interaction with the complementary sequence of the ribosomal 5s rna .
C0035553
ribosomal
C0597295
ribosome