Phi Beta Kappa

Irma T. Hirschl Award (1980-1984)

Member, Cell Biology and Physiology Study Section, (NIH), 1985-1989, Chairman, 1988-1989. Member or chair of many NIH ad hoc review panels.

Chair, Biological Sciences Section, New York Academy of Science, 1987.

Editorial Board, Journal of Cellular Physiology, 1985-1989.

Editor, Journal of Cellular Physiology, 1989-2002.

Editorial Board, Journal of Cell Science, 1988-1991.

Editorial Board, Journal of Cell Biology, 1990-1996.

Board of Governors, New York Society of Electron Microscopy, 1990-1992.

Chair, Lysosomes Gordon Conference, 1994.

President, New York Society of Experimental Microscopists, 1996-1997.

Member, American Cancer Society Study Section (Cell Biology) 1992-1995.

Member, Human Frontiers Science Program Study Section, 1997-2001.

Distinguished Lecturer in Molecular Medicine (1996) Mt. Sinai School of Medicine.

Keynote address, Case Western Reserve University Graduate Program Retreat (2002)

Council, The Harvey Society, 1997-2000.

Board of Directors, New York Structural Biology Center, 1999-.

President, The Harvey Society, 2002-2003.

Naidorf Memorial Lecture, Columbia University, 2003.

Visiting Professor, Cleveland Clinic, 2005.

MERIT Award, NIH, 2005-.