About the Authors

Pu Liu

pliu24@its.jnj.com (PL); dagrafio@its.jnj.com (DKA)

Affiliation Johnson & Johnson Pharmaceutical Research and Development, Exton, Pennsylvania, United States of America

Fangqiang Zhu

Affiliation Johnson & Johnson Pharmaceutical Research and Development, Exton, Pennsylvania, United States of America

Dmitrii N. Rassokhin

Affiliation Johnson & Johnson Pharmaceutical Research and Development, Exton, Pennsylvania, United States of America

Dimitris K. Agrafiotis

pliu24@its.jnj.com (PL); dagrafio@its.jnj.com (DKA)

Affiliation Johnson & Johnson Pharmaceutical Research and Development, Exton, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist. Dr. Dunbrack has previously advised the authors on the CCD algorithm.

Author Contributions

Conceived and designed the experiments: PL DKA. Performed the experiments: PL. Analyzed the data: PL. Contributed reagents/materials/analysis tools: PL FZ DNR. Wrote the paper: PL DKA.