About the Authors

Michael Degtyarev

Affiliation Department of Translational Oncology, Genentech, South San Francisco, California, United States of America

Mike Reichelt

Affiliation Department of Pathology, Genentech, South San Francisco, California, United States of America

Kui Lin

klin@gene.com

Affiliation Department of Translational Oncology, Genentech, South San Francisco, California, United States of America

Competing Interests

All authors are employees of Genentech, Inc., a member of the Roche group. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: MD KL. Performed the experiments: MD MR. Analyzed the data: MD MR KL. Wrote the paper: MD KL.