About the Authors

Martin F. Strand

martin.frank.strand@rr-research.no (MFS); stefan.krauss@rr-research.no (SK)

Affiliation Unit for Cell Signalling, Institute for Microbiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway

Steven R. Wilson

Affiliation Department of Chemistry, University of Oslo, Oslo, Norway

Jennifer L. Dembinski

Affiliation Unit for Cell Signalling, Institute for Microbiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway

Daniel D. Holsworth

Affiliation ChemDiv Inc., San Diego, California, United States of America

Alexander Khvat

Affiliation ChemDiv Inc., San Diego, California, United States of America

Ilya Okun

Affiliation ChemDiv Inc., San Diego, California, United States of America

Dirk Petersen

Affiliation Department of Chemistry, University of Oslo, Oslo, Norway

Stefan Krauss

martin.frank.strand@rr-research.no (MFS); stefan.krauss@rr-research.no (SK)

Affiliation Unit for Cell Signalling, Institute for Microbiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway

Competing Interests

The chemotype detailed in this study is part of a patent filed by Drs. Alex Khvat, Ilya Okun and others titled: HETEROCYCLIC INHIBITORS OF AN Hh-SIGNAL CASCADE, MEDICINAL COMPOSITIONS BASED THEREON AND METHODS FOR TREATING DISEASES CAUSED BY THE ABERRANT ACTIVITY OF AN Hh-SIGNAL SYSTEM (PCT/IB2008/055258; WO 2009/077956 A2 and WO 2009/077956 A3). There are currently no products arising from the work under development based on the chemotype detailed in this study. None of the authors, aside from Drs. Alex Khvat, Ilya Okun and Dan Holsworth who are employed by ChemDiv Inc, have any financial relationships that could be perceived as relevant. The authors declare no other competing interests. The competing interest detailed here does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MFS SRW JLD DDH AK IO DP SK. Performed the experiments: MFS SRW JLD AK IO DP. Analyzed the data: MFS SRW JLD DDH AK IO DP SK. Contributed reagents/materials/analysis tools: MFS SRW JLD DDH AK IO DP. Wrote the paper: MFS SRW JLD DDH AK IO DP SK.