DNA dependent synthesis of protein L12 from escherichia coli ribosomes, in vitro.

Abstract
The in vitro synthesis of [E. coli] ribosomal protein L12 was obtained in a coupled system with DNA extracted from the transducing phage .lambda.rifd18 as template. A 2nd protein (MW 16,000) with immunological, chemical and ribosome-binding characteristics similar to L12 is also formed in this in vitro system. The synthesis of both proteins is depressed by 1/2 when guanosine-5''-diphosphate-3''-diphosphate is added to the reaction mixture.