The flagellin hypervariable region is a potential flagella display domain in probiotic Escherichia coli strain Nissle 1917

The flagellin hypervariable region is a potential flagella display domain in probiotic Escherichia coli strain Nissle 1917
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鞭毛蛋白高变区是益生菌大肠杆菌菌株 Nissle 1917 中潜在的鞭毛展示结构域

DOI:
10.1007/s00203-016-1219-3
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发表时间:
2016-04
影响因子:
2.8
通讯作者:
Zhu, Guoqiang
Zhu, Guoqiang
中科院分区:
生物学4区
文献类型:
--
作者:
Xia, Pengpeng;Zhou, Mingxu;Li, Luan;Zhu, Guoqiang

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研究最多的益生菌,大肠杆菌菌株Nissle 1917(EcN)具有血清型H1的鞭毛。为了探索利用EcN鞭毛蛋白在鞭毛展示应用中的潜力,我们研究了删除鞭毛蛋白高变区中的氨基酸对EcNc(EcN治愈了其两个隐蔽质粒pMUT 1和pMUT 2)的影响。构建了两个EcNc鞭毛蛋白高变区277 ~ 286和287 ~ 296氨基酸残基缺失的同基因突变体。两种突变体都是鞭毛化的,粘附于IPEC-J2细胞,并定殖于BALB/c小鼠。这些高变区可能在异源表位的展示中具有未来的效用。
The most studied probiotic, Escherichia coli strain Nissle 1917 (EcN) possesses flagella of serotype H1. To explore the potential to use EcN flagellin in flagella display applications, we investigated the effect of deleting amino acids in the hypervariable region of flagellin on EcNc (EcN cured of its two cryptic plasmids pMUT1 and pMUT2). Two EcNc flagellin isogenic mutants with deletions of amino acid residual from 277 to 286 and from 287 to 296 in the hypervariable domain were constructed. Both mutants were flagellated, adherent to IPEC-J2 cells, and colonized BALB/c mice. These hypervariable regions may have future utility in the display of heterologous epitopes.
DOI: 10.1016/s1438-4221(00)80119-8
发表时间: 2000-07
期刊: International journal of medical microbiology : IJMM
影响因子: --
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