After working as an undergrad at Harvard with Jonathan Beckwith on the
molecular biology of protein secretion, I began to train in protein
biochemistry working with Gunter Blobel at Rockefeller University. I
subsequently got a Ph.D. in molecular biophysics working on the mechanism of
membrane protein folding with Donald Engelman at Yale. I subsequently trained
in protein crystallography as a postdoctoral fellow with Johann Deisenhofer at
the University of Texas Southwestern Medical Center in Dallas. I joined the
Columbia faculty in 1997, where I am now an associate professor of biological
sciences. My lab works on the molecular biophysics of ATP-driven transmembrane
transport in addition to structural genomics.