蛋白质分子中是否有环状结构存在是蛋白质化学中争论得最激烈的问题,主张环状结构的学派的最初论据就是在高温F用稀酸使蛋白质水解时得到了二酮吡嗪的衍生物.他们认为这是由条件较缓和水解不完全而得的中间产物,所以这种粘构是原来存在于蛋白质分子中的,但是有不少学者认为这种环状化合物 The existence of ring structures in protein molecules is arguably the most controversial issue in protein chemistry. The original argument of the school of thought for the ring structure was that diketopyrazine derivatives were obtained when the protein was hydrolyzed with dilute acid at high temperature. They think this is an intermediate product obtained from the more moderate hydrolysis and incomplete hydrolysis, so this sticky structure originally exists in protein molecules, but many scholars think that this cyclic compound