1998 - Present : Associate Professor. Department of Biotechnology, Yonsei University, Korea.
1995 - 1998 : Assistant Professor. Department of Biotechnology, Yonsei University, Korea.
1993 - 1995 : Lecturer and Research Associate, Havard Medical school, Massachusetts, U.S.A.
1992 - 1993 : Postdoctoral fellow, Havard Medical school, Massachusetts, U.S.A.

  1. Functional analysis of T cell receptor mediated signalling pathway for T cell activation.
  2. Molecular nature of apoptosis signal transduction pathway in T lymphocyte.
  3. Studies on function of HIV viral protein(Nef, Vpr, Vpu, Vif) in T lymphocyte.
  4. Development of nerve immuno suppressor and drugs for autoimmune disease such as Diabete and Alzheimer' disease.
    5.