Hybrid Ribosome Formation from Escherichia coli and Chloroplast Ribosome Subunits

Abstract
A 70S ribosome was prepared from a 30S ribosome subunit from Euglena gracilis chloroplasts and a 50S ribosome subunit from Escherichia coli. This hybrid ribosome was active in polyuridylic acid-directed polyphenylalanine synthesis.