Contrary to a previous report, messenger RNA for the tryptophan operon is degraded in the 5′—3′ direction. The following two articles describe how pulse labelling and hybridization experiments ...
Ito, J., and Imamoto, F., Nature (in the press). Imamoto, F., and Ito, J., Nature (preceding article). Baker, R. F., and Yanofsky, C., Proc. US Nat. Acad. Sci. (in ...