In the summer of 1956, we learned about experiments made by Larry Morse and Esther and Joshua Lederberg on the lambda-mediated transduction (gene transfer from one bacterial strain to another by a bacteriophage serving as vector) of bacterial determinants for galactose fermentation. Since these investigators had encountered defective lysogenic strains among their transductants, we felt that such strains should be included in the collection of lambda prophage mutants under study in our laboratory. Very rapidly, thanks to the stimulating help by Jean Weigle and Grete Kellenberger, this turned out to be extremely fruitful. ... This was the end of my career as an electron microscopist and in chosing [sic] genetic and physiological approaches I became a molecular geneticist.
Back at the University of Geneva, Arber worked in a laboratory in the basement of the Physics Institute, where he carried out productive research and hosted "a number of first class graduate students, postdoctoral fellows and senior scientists." including Daisy Roulland Dussoix,[1] whose work helped him to later obtain the Nobel Prize.[5] In 1965, the University of Geneva promoted him to Extraordinary Professor for Molecular Genetics. In 1971, after spending a year as a visiting Miller Professor in the Department of Molecular Biology at Berkeley, Arber moved to the University of Basel. In Basel, he was one of the first persons to work in the newly constructed Biozentrum, which housed the departments of biophysics, biochemistry, microbiology, structural biology, cell biology and pharmacology and was thus conducive to interdisciplinary research.
On 27 occasions since 1981, Werner Arber has shared his expertise and passion for science with young scientists at the Lindau Nobel Laureate Meetings.[6]
Arber is married and has two daughters, including Silvia Arber.
Arber is a Christian and theistic evolutionist, stating "The most primitive cells may require at least several hundred different specific biological macromolecules. How such already quite complex structures may have come together, remains a mystery to me. The possibility of the existence of a Creator, of God, represents to me a satisfactory solution to this problem."[11] In addition, he has affirmed: "I know that the concept of God helped me to master many questions in life; it guides me in critical situations, and I see it confirmed in many deep insights into the beauty of the functioning of the world."[12]
^Again from Arber's Nobel Autobiography: "One of the first experiments after my return to Geneva was to render E. coli B and its radiation resistant strain B/r sensitive to phage lambda. The first step to accomplish this was easy thanks to a hint received from Esther Lederberg to look for cotransduction of the Ma1+ and lambdaS characters."
^Arber, W. 1992. The Existence of a Creator Represents a Satisfactory Solution. In Margenau, H. and R. A. Varghese (eds.), Cosmos, Bios, Theos: Scientists Reflect on Science, God, and the Origins of the Universe, Life, and Homo sapiens. La Salle, IL: Open Court, p. 141-142.
^Arber, W. 1992. The Existence of a Creator Represents a Satisfactory Solution. In Margenau, H. and R. A. Varghese (eds.), Cosmos, Bios, Theos: Scientists Reflect on Science, God, and the Origins of the Universe, Life, and Homo sapiens. La Salle, IL: Open Court, p. 143.
Kroon, Am (Feb 1979). "The Nobel Prize for Medicine and Physiology in 1978 (Werner Arber, Daniel Nathans, Hamilton Smith)". Nederlands Tijdschrift voor Geneeskunde. 123 (5): 153–6. ISSN0028-2162. PMID368662.
Piekarowicz, A (1979). "Werner Arber, Daniel Nathans and Hamilton Smith. Nobel prizes for the studies on DNA restriction enzymes". Postepy Biochemii. 25 (2): 251–3. ISSN0032-5422. PMID388391.
Berg, K (Dec 1978). "The Nobel prize in physiology and medicine 1978. Nobel prize to a controversial research field". Tidsskrift for den Norske Laegeforening. 98 (34–36): 1741–2. ISSN0029-2001. PMID725894.
Desiderio, S; Boyer, S (Nov 1978). "Arber, Smith and Nathans: Nobel Laureates in medicine and physiology, 1978". The Johns Hopkins Medical Journal. 143 (5): ix–x. ISSN0021-7263. PMID364154.