Dan Gallahan is Deputy Director of the Division of Cancer Biology at the National Cancer Institute (NCI) and helps lead the Division in its mission of supporting and facilitating basic cancer biology research. His primary focus at NCI is the application of integrated approaches, tools, and data sets to understanding cancer. He established and still oversees the Division’s efforts in cancer systems biology, the latest of which is the Cancer Systems Biology Consortium (CSBC). As Deputy Director, he also assists in planning and implementing the NCI’s overall efforts in genomics, proteomics, structural biology, and nanotechnology, and is a liaison with other government and commercial entities in the areas of technology and systems biology. Dr. Gallahan is a molecular and cancer biologist with broad expertise in the fields of systems biology, breast cancer, technology development, and science policy. He was trained in Molecular Biology and Biochemistry at the University of Maryland, with additional post-doctoral training at the NIH and the German Cancer Research Center. His post-doctoral work included training in cancer biology, proteomics, and bioinformatics. Prior to joining the Division of Cancer Biology, he had an active NCI intramural career in the Laboratory of Tumor Immunology and Biology.