The transferrin receptor‐1 membrane stub undergoes intramembrane proteolysis by signal peptide peptidase‐like 2b
The transferrin receptor‐1 membrane stub undergoes intramembrane proteolysis by signal peptide peptidase‐like 2b
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转铁蛋白受体 1 膜短端通过信号肽类肽酶 2b 进行膜内蛋白水解
DOI:
10.1111/febs.12176
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
H. Fuchs
中科院分区:
文献类型:
--
作者:
C.Zahn;M. Kaup;R. Fluhrer;H. Fuchs
The successive events of shedding and regulated intramembrane proteolysis are known to comprise a fundamental biological process of type I and II membrane proteins (e.g. amyloid precursor protein, Notch receptor and pro‐tumor necrosis factor‐α). Some of the resulting fragments were shown to be involved in important intra‐ and extracellular signalling events. Although shedding of the human transferrin receptor‐1 (TfR1) has been known for > 30 years and soluble TfR1 is an accepted diagnostic marker, the fate of the remaining N‐terminal fragment (NTF) remains unknown. In the present study, we demonstrate for the first time that TfR1‐NTF is subject to regulated intramembrane proteolysis and, using MALDI‐TOF‐TOF‐MS, we have identified the cleavage site as being located C‐terminal from Gly‐84. We showed that the resulting C‐terminal peptide is extracellularly released after regulated intramembrane proteolysis and it was detected as a monomer with an internal disulfide bridge. We further identified signal peptide peptidase‐like 2a and mainly signal peptide peptidase‐like 2b as being responsible for the intramembrane proteolysis of TfR1‐NTF.
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影响因子:
3.5
作者:
Green, F;O'Hare, T;Enns, CA
通讯作者:
Enns, CA
影响因子:
7.8
作者:
Barbara Volz;G. Orberger;S. Porwoll;Hans;Rudolf Tauber
通讯作者:
Rudolf Tauber
DOI:
10.1016/j.bbamcr.2012.11.009
发表时间:
2013-03-01
影响因子:
5.1
作者:
Poggi, Marjorie;Kara, Imene;Peiretti, Franck
通讯作者:
Peiretti, Franck
影响因子:
5.7
作者:
Fuchs, H;Lücken, U;Gessner, R
通讯作者:
Gessner, R
DOI:
--
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Alvarez,E;Gironès,N;Davis,RJ
通讯作者:
Davis,RJ