Intrinsic toxicity of the cellular prion protein is regulated by its conserved central region.
Intrinsic toxicity of the cellular prion protein is regulated by its conserved central region.
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细胞朊病毒蛋白的内在毒性由其保守的中心区域调节。
DOI:
10.1096/fj.201902749rr
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Millhauser,GlennL
中科院分区:
文献类型:
--
作者:
Roseman,GrahamP;Wu,Bei;Wadolkowski,MarkA;Harris,DavidA;Millhauser,GlennL
The conserved central region (CR) of PrPChas been hypothesized to serve as a passive linker connecting the protein's toxic N‐terminal and globular C‐terminal domains. Yet, deletion of the CR causes neonatal fatality in mice, implying the CR possesses a protective function. The CR encompasses the regulatory α‐cleavage locus, and additionally facilitates a regulatory metal ion‐promoted interaction between the PrPCN‐ and C‐terminal domains. To elucidate the role of the CR and determine why CR deletion generates toxicity, we designed PrPCconstructs wherein either thecis‐interaction or α‐cleavage are selectively prevented. These constructs were interrogated using nuclear magnetic resonance, electrophysiology, and cell viability assays. Our results demonstrate the CR is not a passive linker and the native sequence is crucial for its protective role over the toxic N‐terminus, irrespective of α‐cleavage or thecis‐interaction. Additionally, we find that the CR facilitates homodimerization of PrPC, attenuating the toxicity of the N‐terminus.
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影响因子:
3.8
作者:
A. Abdul;S. Tross;S. R. Friedman;A. Kouzi;D. Des Jarlais
通讯作者:
D. Des Jarlais
DOI:
10.1097/00126334-199109000-00010
发表时间:
1991
期刊:
JAIDS Journal of Acquired Immune Deficiency Syndromes
影响因子:
--
作者:
Bengt Ljungberg;B. Christensson;K. Tunving;Bengt Andersson;Britt Landvall;M. Lundberg;Ann
通讯作者:
Ann
影响因子:
5
作者:
BALL, JC;LANGE, WR;FRIEDMAN, SR
通讯作者:
FRIEDMAN, SR
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
D. Chitwood;M. Comerford
通讯作者:
M. Comerford
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
Jim Arachne;A. Ball
通讯作者:
A. Ball