David Cyranoski, Nature News, 03 August 2017 http://www.nature.com/news/authors-retract-controversial-ngago-gene-editing-study-1.22412
The authors of the highly controversial NgAgo gene editing paper published in Nature Biotechnology in May 2016 have issued a retraction. The original article demonstrated that NgAgo was an Argonaut-based DNG-guided endonuclease that could be used to knock out or replace genes more accurately and with greater versatility than CRISPR/Cas. After publication, many researchers tried to replicate the results with little success. The authors retracted the study citing scientists’ inability to replicate the main finding.