David was originally trained in DNA techniques whilst studying the intricacies of bacterial DNA replication during his PhD.  Whilst doing a postdoc in the US he discovered the magic of proteins, and crystallised one by accident. 

This piqued his interest in structural biology, and he has been attempting to crystallise proteins and solve their structures using x-ray crystallography ever since.  He currently works in the Antibody Therapeutics lab at the Garvan Institute, where he characterises the molecular details of antibody-antigen interactions.