Amino acids and peptides. XIII. Synthesis of a nonacosapeptide corresponding to the N-terminal sequence 1-29 (.BETA.-fragment) of human liver metallothionein II (hMT II) and its heavy metal-binding properties.
摘要:
通过叠氮偶联五种肽段[1、2、4、6和8],然后进行高频脱保护,合成了对应于人肝金属硫蛋白II(hMT II)N端序列1-29(β-片段)的非酰肽,并考察了其重金属结合特性。结果表明,与 hMT II C 端序列 30-61 相应的合成 β 片段和合成 α 片段的镉结合能力强于原生大鼠硫蛋白。此外,研究还发现α-片段和β-片段都优先与铜离子而不是镉离子结合。
The Structure-Taste Relationships of the Dipeptide Esters Composed of L-Aspartic Acid and β-Hydroxy Amino Acids
作者:Yasuo Ariyoshi、Naohiko Yasuda、Tetsuo Yamatani
DOI:10.1246/bcsj.47.326
日期:1974.2
group to the degree of sweetness of aspartyl dipeptides, we have synthesized a number of α-L-aspartyl dipeptides, such as the esters of α-L-aspartyl-L-hydroxynorleucine (16 and 17), -O-acyl-L-serine (18–21), -D-serine (22–28), -D-threonine (30–36), and -D-allothreonine (37–43); their sweetness potencies were compared with those of the corresponding dipeptides without a hydroxyl group. It has been found