athe first amino acid to be discovered in proteins was asparagine,in 1806 在蛋白质有待发现的第一氨基酸是 asparagine,在 1806 年 [translate] ai n g g i n g g [translate] aamino acids are often designated by either a three-letter abbreviation or a one-letter aymbol 氨基酸经常是由三信件...