About the Authors

T. Meri

taru.meri@helsinki.fi

Affiliations Haartman Institute, Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki, Helsinki, Finland, Institute of Biotechnology, University of Helsinki, Helsinki, Finland

H. Amdahl

Contributed equally to this work with: H. Amdahl, M. J. Lehtinen

Affiliation Haartman Institute, Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki, Helsinki, Finland

M. J. Lehtinen

Contributed equally to this work with: H. Amdahl, M. J. Lehtinen

Affiliation Haartman Institute, Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki, Helsinki, Finland

S. Hyvärinen

Affiliation Haartman Institute, Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki, Helsinki, Finland

J. V. McDowell

Affiliation Virginia Commonwealth University Medical Center, Richmond, Virginia, United States of America

A. Bhattacharjee

Affiliations Haartman Institute, Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki, Helsinki, Finland, Institute of Biotechnology, University of Helsinki, Helsinki, Finland

S. Meri

Affiliation Haartman Institute, Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki, Helsinki, Finland

R. Marconi

Affiliation Virginia Commonwealth University Medical Center, Richmond, Virginia, United States of America

A. Goldman

Affiliations Institute of Biotechnology, University of Helsinki, Helsinki, Finland, Department of Biosciences, Division of Biochemistry and Biotechnology, University of Helsinki, Helsinki, Finland

T. S. Jokiranta

Affiliation Institute of Biotechnology, University of Helsinki, Helsinki, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TM HA MJL SM AG TSJ. Performed the experiments: TM HA MJL. Analyzed the data: TM HA MJL TSJ. Contributed reagents/materials/analysis tools: SH JVM RM AB. Wrote the paper: TM AG TSJ.