Amino acids and peptides. IX. Synthesis of cysteine-containing peptide fragments related to human hepatic metallothionein II (hMT II) and determination of their heavy metal-binding properties.
Amino acids and peptides. VIII. Synthesis of a hexacosapeptide corresponding to the C-terminal sequence 36-61 of human metallothionein II (hMT II) and determination of its heavy metal binding activity.
摘要:
使用叠氮化物程序通过片段缩合法合成了对应于人肝金属硫蛋白(hMT II)的残基36-61的C端六肽。通过甲磺酸(MSA)法或氟化氢(HF)法去除保护基,得到所需的肽。通过测量紫外区(200-260 nm)的吸光度作为重金属浓度的函数并通过凝胶过滤方法检查该肽与 Cd 和 Zn 的结合能力。该肽的重金属结合行为与硫因非常相似。
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. XXIV. Synthesis of Neurospora crassa metallothionein and related cysteine-containing peptides and examination of their heavy metal-binding properties.
corresponding to the entire aminoacid sequence of Neurospora crassa metallothionein and several related cysteine-containing peptides were synthesized by the conventional solution method and their heavy metal-binding properties were examined. The Cu2+- or Cu+-binding properties of the various peptides were similar to each other, whereas the Cd2+-binding properties of these peptides were fairly structure-dependent