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The Sec61-associated Sec62/Sec63 complex supports translocation of only a subset of precursor polypeptides, i.e. in a substrate-specific manner. To characterize Sec62/Sec63-dependent precursors, we combined siRNA-mediated Sec62 or Sec63 depletion in Hela cells or CRISPR/Cas9-mediated knock-down in H...
ORGANISM(S): Homo sapiens (Human) 
2020-03-06 | PXD012078 | Pride
Various pathways can target nascent or fully synthesized precursor polypeptides to the human endoplasmic reticulum (ER). Typically, they involve cytosolic proteins or complexes and their respective receptors on the ER surface. The signal recognition particle (SRP) and the heterodimeric SRP-receptor...
ORGANISM(S): Homo sapiens (Human) 
2020-03-06 | PXD011993 | Pride
There is at least one additional targeting pathway for proteins to the human endoplasmic reticulum, which involves a cytosolic as well as an ER-membrane resident receptor, belonging to the family of PEX proteins. In contrast to the precursor protein targeting pathways, the additional pathway targets...
ORGANISM(S): Homo sapiens (Human) 
2021-12-20 | PXD012005 | Pride
While the Sec61-complex in the membrane of the human endoplasmic reticulum facilitates translocation of all precursor polypeptides with amino-terminal signal peptides or transmembrane helices, the Sec61-associated translocon-associated protein (TRAP)-complex supports translocation of only a subset o...
ORGANISM(S): Homo sapiens (Human) 
2018-08-09 | PXD008178 | Pride
SPOP is a ubiquitin ligase adaptor frequently mutated in prostate cancer. It is involved in ubiquitination and degradation of substrate proteins. We examined the impact of wild-type and mutant SPOP on the transcriptional profile of prostate cancer cells. We cloned several naturally occurring (in hum...
ORGANISM(S): Homo sapiens 
The subcellular localization of specific mRNAs is an evolutionary conserved mechanism that underlies the establishment of cellular polarity and specialized cell functions. In neurons, mRNA trafficking and local protein translation in dendrites provides an important mechanism that mediates synaptic ...
ORGANISM(S): Rattus norvegicus 
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