Authors: Joseph D Mougous; Ryan H Senaratne; Christopher J Petzold; Madhulika Jain; Dong H Lee; Michael W Schelle; Michael D Leavell; Jeffery S Cox; Julie A Leary; Lee W Riley; Carolyn R Bertozzi Journal: Proc Natl Acad Sci U S A Date: 2006-03-06 Impact factor: 11.205