John_W._Kappler
John Wayne Kappler (born December 22, 1943, in Baltimore, Maryland) is a professor in the Department of Integrated Immunology at National Jewish Health.[2] His principal research is in T cell biology, a subject he collaborates on with his wife Philippa Marrack.[3] In 1983 they discovered the T cell receptor, together with Ellis Reinherz and James Allison.