the requirement for polyamines for optimal translation of amber codons in vivo was confirmed by showing that infection of polyamine-depleted e. coli with bacteriophage t7 carrying an amber mutation in gene 1 resulted in an increased accumulation of the amber fragment of the gene 1 protein and a decreased accumulation of the full-length gene 1 protein compared with infection of an amine-supplemented culture .
C0032433
polyamine
C0002508
amine