About the Authors

Eric Bartee

Affiliation Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, Oregon, United States of America

Ashley McCormack

Affiliation Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, Oregon, United States of America

Klaus Früh

To whom correspondence should be addressed. E-mail: fruehk@ohsu.edu

Affiliation Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, Oregon, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

KF conceived and designed the experiments. EB performed the experiments. AM maintained and ran the mass spectroscope and analyzed the data. EB and KF wrote the paper.