About the Authors
Department of Cell Biology and Neuroscience, Montana State University, Bozeman, Montana, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RSS. Performed the experiments: RSS HKS ARD CDK. Analyzed the data: RSS HKS. Contributed reagents/materials/analysis tools: RSS HKS ARD CDK. Wrote the manuscript: RSS.