About the Authors

Loren Hansen

Affiliations Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America, Boston University, Bioinformatics Program, Boston, Massachusetts, United States of America

Nak-Kyeong Kim

Affiliation Department of Mathematics and Statistics, Old Dominion University, Norfolk, Virginia, United States of America

Leonardo Mariño-Ramírez

marino@ncbi.nlm.nih.gov

Affiliations Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America, PanAmerican Bioinformatics Institute, Santa Marta, Magdalena, Colombia

David Landsman

Affiliation Computational Biology Branch, 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: LH DL LM-R. Performed the experiments: LH N-KK. Analyzed the data: LH N-KK. Contributed reagents/materials/analysis tools: LH N-KK. Wrote the paper: LH DL LM-R.