Tangled up in knots: structures of inactivated forms of E. coli class Ia ribonucleotide reductase.
Zimanyi CM, Ando N, Brignole EJ, Asturias FJ, Stubbe J, Drennan CL. Tangled up in knots: structures of inactivated forms of E. coli class Ia ribonucleotide reductase. Structure. 2012 Aug 08; 20(8):1374-83.