About the Authors
Howard Hughes Medical Institute, Department of Cell and Developmental Biology, Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
Department of Immunology/Microbiology, Rush University Medical Center, Chicago, Illinois, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JJC RSK PAN. Performed the experiments: JJC RSK AC. Analyzed the data: JJC RSK PAN. Contributed reagents/materials/analysis tools: AC DLW. Wrote the paper: JJC RSK PAN.