Solution Structures of active Ptr ToxB and its Inactive Ortholog - Nyarko, Afua; Singarapu, Kiran K.; Figueroa, Melania; Manning, Viola A.; Pandelova, Iovanna; Wolpert, Thomas J.; Ciuffetti, Lynda M.; Barbar, Elisar (Biological Magnetic Resonance Bank, 2014)