About the Authors

Monika B. Dolinska

Affiliation National Eye Institute, NIH, Bethesda, Maryland, United States of America

Elena Kovaleva

Affiliation Chesapeake PERL, Savage, Maryland, United States of America

Peter Backlund

Affiliation Eunice Kennedy Shriver National Institute Child Health and Human Development, NIH, Bethesda, Maryland, United States of America

Paul T. Wingfield

Affiliation National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, United States of America

Brian P. Brooks

brooksb@nei.nih.gov (BPB); sergeevy@nei.nih.gov (YVS)

Affiliation National Eye Institute, NIH, Bethesda, Maryland, United States of America

Yuri V. Sergeev

brooksb@nei.nih.gov (BPB); sergeevy@nei.nih.gov (YVS)

Affiliation National Eye Institute, NIH, Bethesda, Maryland, United States of America

Competing Interests

Elena Kovaleva is employed by Chesapeake PERL. 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.

Author Contributions

Conceived and designed the experiments: MBD BPB YVS. Performed the experiments: MBD EK PB PTW YVS. Analyzed the data: MBD PB PTW YVS. Contributed reagents/materials/analysis tools: MBD PB PTW YVS. Wrote the paper: MBD PTW BPB YVS. Protein Purification: MBD YVS. Synthetic gene cloning and biomass production: EK. Enzymatic activity, CD: MBD. Mass spectroscopy: PB. Analytical ultracentrifugation: PTW. Molecular modeling: YVS.