NMR Studies of the Stability, Protonation States, and Tautomerism of 13C- and 15N-Labeled Aldimines of the Coenzyme Pyridoxal 5′-Phosphate in Water - Chan-Huot, Monique; Sharif, Shasad; Tolstoy, Peter M; Toney, Michael D; Limbach, Hans-Heinrich (Biochemistry (Easton), 2010)