Original Research Published on 30 Apr 2014 CARF and WYL domains: ligand-binding regulators of prokaryotic defense systems in Computational Genomics Kira S. MakarovaVivek AnantharamanNick V. GrishinEugene V. KooninL. Aravind Frontiers in Genetics doi 10.3389/fgene.2014.00102 18,989 views 199 citations