... parameters were calculated using nonlinearleast-squares regression with kaleida graph software(Adelbeck Software, Reading, PA, USA) or IGOR Prosoftware (WaveMetrics, Inc., Lake Oswego, OR, USA).Eqn ... more than 300 times higher than with NADH (0.13 UÆmg)1)inreductive amination of pyruvate. Oxidative deamina-tion of N-methyl-l-alanine with NADP+(0.36 UÆmg)1) was markedly lower than ... discriminatingbetween methylamine and ammonia are poorly under-stood. N-Methyl amino acids are structurally similarto opines such as nopaline, octopine, lysopine, andhistopine, which are N-substituted amino acids...