Search results for "SEC63"

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Role of Human Sec63 in Modulating the Steady-State Levels of Multi-Spanning Membrane Proteins

2012

The Sec61 translocon of the endoplasmic reticulum (ER) membrane forms an aqueous pore, allowing polypeptides to be transferred across or integrated into membranes. Protein translocation into the ER can occur co- and posttranslationally. In yeast, posttranslational translocation involves the heptameric translocase complex including its Sec62p and Sec63p subunits. The mammalian ER membrane contains orthologs of yeast Sec62p and Sec63p, but their function is poorly understood. Here, we analyzed the effects of excess and deficit Sec63 on various ER cargoes using human cell culture systems. The overexpression of Sec63 reduces the steady-state levels of viral and cellular multi-spanning membrane …

Gastroenterology and hepatologylcsh:MedicineProtein SynthesisEndoplasmic ReticulumBiochemistryHepatitisViral Envelope ProteinsMolecular Cell BiologyTranslocaseRNA Small Interferinglcsh:ScienceIntegral membrane proteinEndoplasmic Reticulum Chaperone BiPHeat-Shock ProteinsMultidisciplinarybiologyMembrane transport proteinReverse Transcriptase Polymerase Chain ReactionRNA-Binding ProteinsHepatitis BCellular StructuresCell biologyInfectious hepatitisCytochemistryMedicineInfectious diseasesResearch ArticleBlotting WesternViral diseasesReal-Time Polymerase Chain ReactionTransfectionCell LineSEC63Bacterial ProteinsHumansBiologyLiver diseasesDNA PrimersEndoplasmic reticulumlcsh:RCell MembraneMembrane ProteinsMembrane Transport ProteinsProteinsSEC61 TransloconChaperone ProteinsTransmembrane ProteinsLuminescent ProteinsMembrane proteinGene Expression RegulationMicroscopy FluorescenceSubcellular OrganellesChaperone (protein)Mutationbiology.proteinlcsh:QMolecular ChaperonesPLoS ONE
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