1H, 15N and 13C resonance assignments of human dihydrofolate reductase in its complex with trimethoprim and NADPH - Kovalevskaya, Nadezhda V.; Smurnyy, Yegor D.; Polshakov, Vladimir I.; Birdsall, Berry; Bradbury, Alan F.; Frenkiel, Thomas A.; Feeney, James (Biological Magnetic Resonance Bank, 2006)