Synthesis and characterization of the 47-residue heterodimeric antimicrobial peptide distinctin, featuring directed disulfide bridge formation.

Synthesis and characterization of the 47-residue heterodimeric antimicrobial peptide distinctin, featuring directed disulfide bridge formation.
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DOI:
10.1002/bip.22087
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发表时间:
2012
期刊:
影响因子:
2.9
通讯作者:
Veglia, Gianluigi
Veglia, Gianluigi
中科院分区:
生物学4区
文献类型:
--
作者:
Mullen, Daniel G.;Verardi, Raffaello;Porcelli, Fernando;Scaloni, Andrea;Barany, George;Veglia, Gianluigi

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Distinctin 是一种具有有效抗菌活性的 47 残基异二聚肽,包含两个通过 22 残基 A 链的 Cys19 和 25 残基 B 链的 Cys23 之间的二硫键共价连接的单体单元。以前的合成策略涉及组装两条单独的链,然后将它们共氧化以形成连接的二硫桥,并产生三种物种的混合物:两种同二聚体和一种异二聚体。在这里,我们报告了使用最近开发的定向二硫桥形成策略合成的完全异二聚体独特蛋白。通过这种方式制备的材料经过表征,发现适合更详细的结构研究。
Distinctin, a 47-residue heterodimeric peptide with potent antimicrobial activity, comprises two monomeric units linked covalently by a disulfide bond between Cys19 from the 22-residue A chain and Cys23 from the 25-residue B chain. Previous synthetic strategies involved assemblies of the two individual chains, followed by their co-oxidation to form the connecting disulfide bridge, and resulted in a mixture of three species: two homodimers and one heterodimer. Here, we report synthesis of exclusively heterodimeric distinctin, using recently developed tactics for directed disulfide bridge formation. Material prepared this way was characterized and found to be suitable for more detailed structural studies.
DOI: 10.1021/bi991850y
发表时间: 1999-12-21
期刊: BIOCHEMISTRY
影响因子: 2.9
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