About the Authors

Ingeborg Stals

Affiliations Faculty of Applied Bioscience Engineering, University College Ghent, Ghent, Belgium, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium

Saeid Karkehabadi

Affiliation Department of Molecular Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden

Steve Kim

Affiliation DuPont Industrial Biosciences, Palo Alto, California, United States of America

Michael Ward

Affiliation DuPont Industrial Biosciences, Palo Alto, California, United States of America

Anita Van Landschoot

Affiliations Faculty of Applied Bioscience Engineering, University College Ghent, Ghent, Belgium, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium

Bart Devreese

Affiliation Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium

Mats Sandgren

mats.sandgren@slu.se

Affiliation Department of Molecular Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden

Competing Interests

Steve Kim and Michael Ward are employed at the company Genencor. 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: IS S. Karkehabadi S. Kim MW BD MS. Performed the experiments: IS S. Karkehabadi S. Kim MS. Analyzed the data: IS S. Karkehabadi MW BD AVL MS. Contributed reagents/materials/analysis tools: IS MW BD MS. Wrote the paper: IS S. Karkehabadi S. Kim MW AVL BD MS. Hypocrea jecorina Endo T knock-out strain: S. Kim MW. Glyco-analysis: IS. Overexpression strain: S. Kim MW. Protein purification and characterization: IS BD. Protein crystallization, X-ray diffraction, data collection, refinement: S. Karkehabadi MS. Comparative analysis: IS MS. Phylogenetic analysis: IS AVL.