Dr King has a long standing interest in B cell biology, specifically the factors that influence the production of their principle effector molecules, antibodies, and the role of these molecules in health and disease. More recently, he has focused on the analysis of glycan-specific B cell repertoire formation and the development of methodologies to facilitate the expression of recombinant antibody derived from the antigen receptor genes of single-sorted B cells. His current focus is on visualizing effects of environmental influences and commensal organisms on natural repertoire development in mice and humans and utilizing the constituents of these highly conserved glycan-specific repertoires to develop diagnostic and therapeutic reagents.