THE JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE 725 N. WOLFE STREET DEPARTMENT OF MICROBIOLOGY BALTIMORE, WMARYLAND 21205 February 14, 1978 Dr. Paul Berg Department of Biochemistry Stanford University Medical Center Stanford, California 94305 Dear Paul: I agree with the proposed letter on recombinant DNA, and that it is timely to express our views publicly. You may know that Congressmen Rogers and Staggers have drafted a new bill, the elements of which are described in the enclosed summary by Burke Zimmerman. During a discussion of the summary yesterday at the AAAS meeting, it became clear that opinion in the _ government is divided on the desirability and feasibility of using the Public Health Service Act to regulate recombinant DNA research. There are two parts of the proposed letter I want to question: 1) On page 2, second paragraph, I don't know what you have in mind as a "radical alteration" of our views on gene function in disease resulting from recombinant DNA research. Also, has the somatostatin gene been isolated? 2) On page 3, last paragraph. I think it would be better to omit reference to public anxiety and say after " ... Service Act", "to ensure that recombinant DNA research is carried out safely." As you probably know, John Morrow will be coming here this summer, and of course I'm very pleased about his decision. With best regards, Sincerely, Daniel Nathans DN/1c Encl.