Transfer RNA modification improves the rate of aa-tRNA selection at the A-s
ite and the fitness in the P-site and thereby prevents frameshifting accord
ing to a new model how frameshifting occurs [Qian et al. (1998) Mel. Cell 1
, 471-482]. Evidence that the presence of various modified nucleosides in t
RNA also influences central metabolism, thiamine metabolism, and bacterial
virulence is reviewed, (C) 1999 Federation of European Biochemical Societie
s.