About the Authors

Alexander E. Lobkovsky

Affiliation National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America

Yuri I. Wolf

Affiliation National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America

Eugene V. Koonin

koonin@ncbi.nlm.nih.gov

Affiliation National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AEL YIW EVK. Performed the experiments: AEL. Analyzed the data: AEL YIW EVK. Contributed reagents/materials/analysis tools: AEL. Wrote the paper: AEL EVK.