Interviewee: Marshall Nirenberg. Marshall Nirenberg talks about cell-free protein synthesis.

And so I needed a more sensitive assay, and that is a radio... incorporation of radioactive amino acids into protein. After about a year and a half of doing this, and testing them, testing the nucleic acid preparations in different ways, and by the by, I modelled the system after a system that had been described by Zamecnik and Lamborg actually, who had been studying, Zamecnik had been studying for years cell-free protein synthesis and had gotten some amino acid incorporation, albeit low amounts of amino acid incorporation into protein.

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