Scrapie and cellular prion proteins share polypeptide epitopes.

Scrapie and cellular prion proteins share polypeptide epitopes.
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痒病和细胞朊病毒蛋白共享多肽表位。

DOI:
10.1093/infdis/153.5.848
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发表时间:
1986
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Prusiner,SB
Prusiner,SB
中科院分区:
--
文献类型:
--
作者:
Barry,RA;Kent,SB;McKinley,MP;Meyer,RK;DeArmond,SJ;Hood,LE;Prusiner,SB

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羊瘙痒症朊病毒的纯化制剂含有一种主要蛋白质PrP 27-30和棒状结构的聚集体。根据PrP 27-30的NH 2端氨基酸序列,构建了合成肽(PrP-P1)。通过免疫印迹发现,PrP-P1的单特异性兔抗血清与PrP 27-30及其前体(PrP 33- 35 Sc)以及相关的蛋白酶敏感的细胞同源物(PrP 33- 35 C)反应。酶联免疫吸附试验表明,兔抗血清PrP 27 - 30与PrP 27 - 30比与PrP-P1更反应;相反,抗血清PrP-P1与肽比与朊病毒蛋白更反应。此外,PrP-Pl抗体修饰纯化的朊病毒杆,并在感染瘙痒症的仓鼠脑中染色淀粉样蛋白斑块。PrP 27-30、PrP 33- 35 Sc和PrP 33- 35 C共有的肽表位清楚地建立了这三种蛋白质之间的关系。
Purified preparations of scrapie prions contain one major protein, PrP 27–30, and aggregates of rod-shaped structures. On the basis of the NH2-terminal amino acid sequence of PrP 27–30, a synthetic peptide (PrP-P1) was constructed. Monospecific rabbit antisera to PrP-P1 were found by immunoblotting to react with PrP 27–30 and its precursor (PrP 33–35Sc) , as well as with a related protease-sensitive cellular homologue (PrP 33–35C) . An enzyme-linked immunosorbent assay showed that rabbit antiserum to PrP 27–30 was more reactive with PrP 27–30 than with PrP-P1; conversely, antiserum to PrP-P1 was more reactive with the peptide than with the prion proteins. In addition, antibodies to PrP-Pl decorate purified prion rods and stain amyloid plaques in scrapie-infected hamster brain. The peptide epitopes shared by PrP 27–30, PrP 33-35Sc, and PrP 33–35Cclearly establish a relationship among these three proteins.
DOI: --
发表时间: 1983
期刊:
影响因子: --
作者:
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通讯作者: R. Doolittle
DOI: 10.1038/180326a0
发表时间: 1957-01-01
期刊: NATURE
影响因子: 64.8
作者:
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DOI: 10.1073/pnas.83.8.2310
发表时间: 1986-04-01
影响因子: 11.1
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DOI: 10.1146/annurev.ge.18.120184.003005
发表时间: 1984
影响因子: 11.1
作者:
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通讯作者: H. Varmus
DOI: 10.1021/bi00269a050
发表时间: 1982-01-01
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
PRUSINER, SB;BOLTON, DC;MCKINLEY, MP
通讯作者: MCKINLEY, MP