Elektrophoretische Mobilität aktiverEscherichia coli-Ribosomen in Polyacrylamidgelen

70S Escherichia coli ribosomes are separated into three bands by electrophoresis on polyacrylamide gels. Active ribosomes containing [35S]fMet-tRNAfMet at the donor site or [3H]Val-tRNA at the acceptor site comigrate with both main bands.