Muddied waters: the CRISPR IP landscape in Europe

The continuing interference proceedings in the US concerning clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 systems for gene-editing of eukaryotes have received much media attention. Coverage focuses on two groups: one led by Feng Zhang of the Broad Institute of Harvard University and the Massachusetts Institute of Technology, and the other by Jennifer Doudna of the University of California, Berkeley and Emmanuelle Charpentier of the Helmholtz Centre for Infection Research. The commentary focuses on a potential winner-takes-all scenario.