About the Authors

Hongyan Song

Affiliation Program in Molecular Structure and Function, Hospital for Sick Children, Toronto, Ontario, Canada

John Parkinson

jparkin@sickkids.ca

Affiliations Program in Molecular Structure and Function, Hospital for Sick Children, Toronto, Ontario, Canada, Departments of Biochemistry and Molecular Genetics, University of Toronto, Toronto, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JP. Performed the experiments: HS. Analyzed the data: HS JP. Contributed reagents/materials/analysis tools: HS. Wrote the paper: HS JP.