From senior lecturer to associate professor Stockholm University, 1970-1988. Professor biochemistry Uppsala (Sweden) University, since 1988, Karin and Herbert Jacobsson chair biochemistry, since 1988. Secretary Swedish National Committee on Biochemistry 1985-1987, chairman, 1988-1990.
Chairman Nordic Committee on Biochemistry, 1979-1980.
Member American Association for the Advancement of Science, Swedish Bio-chemical Society (secretary 1976-1982), Swedish Chemical Society, Swedish Society Biochemistry and Molecular Biology, Bio-chemical Society United Kingdom, American Association Cancer Research, American Society for Biochemistry and Molecular Biology (honorary), Royal Society Sciences at Uppsala, New York Academy of Sciences.