Nonprotein amino acids from seeds of Cycas circinalis and Phaseolus vulgaris
作者:Cong-Jun Li、Delia M. Brownson、Tom J. Mabry、Chris Perera、E. Arthur Bell
DOI:10.1016/0031-9422(95)00851-9
日期:1996.5
studies on Cycas circinalis seeds from Guam has provided two new nonprotein amino acids, N-(3'-one-5'-methyl)-hexylalanine and leucine betaine. N-methylisoleucine, previously reported as a component of naturally occurring peptides, has been isolated as a free amino acidfrom the seeds of Phaseolusvulgaris (pinto bean), together with S-methylcysteine, pipecolicacid and a dipeptide, gamma-glutamyl-leucine