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。
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 common N-terminal heptapeptide, Ac-Met-Asp-Pro-Asn-Cys-Ser-Cys-OH, Ac-(MT II 1-7)-OH, of mammalian metallothioneins (MTs) was synthesised by a conventional solution method using newly developed β-2-adamantylasparate. This peptide was as reactive as native MT with a monoclonal antibody produced against rat Zn-MT II.
哺乳动物金属硫蛋白(MTs)的共同N端七肽Ac-Met-Asp-Pro-Asn-Cys-Ser-Cys-OH,即Ac-(MT II 1-7)-OH,通过使用新开发的β-2-金刚烷基天冬氨酸,采用传统的溶液方法合成。该肽与针对大鼠Zn-MT II产生的单克隆抗体同样具有反应性。
Amino Acids and Peptides. XXXV. Synthesis of Mouse Metallothionein I.(2). Synthesis of a Nonacosapeptide Corresponding to N-Terminal Sequence 1-29(.BETA.-Fragment) of Mouse Metallothionein I and Related Petides and Examination of Their Heavy Metal-Binding Properties.
A nonacosapeptide corresponding to the N-terminalsequence 1-29 (beta-fragment) of mouse metallothionein I and related peptides were synthesized by the conventional solution method and their heavy metals (Cu2+, Cu+ and Cd2+)-binding properties were examined. The Cu(2+)- or Cu(+)-binding activities of various peptides were not greatly dependent on the peptide structure, so far as examined, as in the
In order to determine the fine structure of the mammalian metallothionein (MT) epitope to a monoclonal anti-rat Zn-MT-II antibody (MT 189-14-7), N-terminal peptides of various lengths of mammalian metallothioneins (MTs) were synthesized by a conventional solution method using the newly developed beta-2-adamantylaspartate, and their immunological properties were examined. It was found that the N-terminal acetyl group was indispensable for the reaction with the monoclonal antibody and the N-terminally acetylated pentapeptide, Ac-Met-Asp-Pro-Asn-Cys-OH, was the smallest peptide which exhibited a significant reactivity with the antibody.