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Catalytic Subunit - Europe PMC

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Last Updated: 13 January 2023

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c- Jun -N Terminal Kinase-Mediated Degradation of γ-Glutamylcysteine Ligase Catalytic Subunit Inhibits GSH Recovery After Acetaminophen Treatment: Role in Sustaining JNK Activation and Liver Injury.

Aims: Acetaminophen overdose is the most common cause of acute liver disease in the United States. The depletion of GSH by APAP metabolites N-acetyl-p-benzoquinone imine is primarily attributed to APAP's intake of GSH. Our goals were to determine if JNK was solely responsible for reduced GCLC that contributed to impaired recovery of GSH and if this was a determining factor in determining APAP hepatotoxicity. JNK's immunoprecipitation reaction has been documented after APAP found binding to GCLC. Expression of a site-directed mutated canonical JNK docking station in GCLC was resistant to decay and led to rapid recovery of GSH and reduced sustained JNK activation. Innovation: Utilizing modified-GCLCLC that had JNK-induced degradation, we were able to identify impaired GSH depletion as a contributing factor to early APAP toxicity development. Activated JNK is directly involved in GCLC and results in proteolytic degradation of GCLC.

Source link: https://europepmc.org/article/MED/36333933


Proximity biotinylation to define the local environment of the protein kinase A catalytic subunit in adrenal cells

PKAc variants in human adrenal cells can be identified by subcellular compartments and proteins closely associated with variants of PKAc. This protocol outlines the steps to use live-cell proximity labeling to identify subcellular compartments and proteins closely associated with human adrenal cells' variants of PKAc. We provide detailed information on the use and use of this protocol, including instructions for clonal cell line manufacture, live biotin labeling of proximal proteins, isotinylated protein isolation, and sample preparation for proteomic analysis using the biotin ligase miniTurbo with wild-type and mutant PKAc. 1,2 For complete information regarding this technique, please refer to Omar et al. Mutant protein kinase A catalytic subunit of adrenal Cushingu2019s syndrome is responsible for adrenal Cushingu2019s syndrome, but its signaling reactions remain unclear. PKAc variants in human adrenal cells was described in this protocol's steps to identify subcellular compartments and proteins closely associated with human adrenal cell variants of PKAc. This protocol describes how to use live-cell proximity labeling to identify subcellular compartments and proteins closely associated with variants of PKAc.

Source link: https://europepmc.org/article/MED/PMC9826815


Genome-Wide Identification of SnRK1 Catalytic α Subunit and FLZ Proteins in Glycyrrhiza inflata Bat. Highlights Their Potential Roles in Licorice Growth and Abiotic Stress Responses

Both Sucrose non-fermenting-1-related protein kinase-1 and its scaffolding proteins, FCS-like zinc finger proteins, are well preserved in land plants and play a key role in various plant growth and stress responses. Bats are made of Glycyrrhiza inflata Bats, as shown by the Glycyrrhiza inflata Bat. In G. inflata, we identified 2 SnRK1 subunit encoding genes and 21 FLZ genes. When transiently expressed in Nicotiana benthamiana leaf cells, a total of ten representative GiFLZ proteins interact with GiSnRK1u03b11, and they show overlapped subcellular localization. Interestingly, GiSnRK1U03b1 and 20 of 21 GiFLZs have higher expression in the roots than in the leaves.

Source link: https://europepmc.org/article/MED/PMC9820696


Genome-Wide Identification of SnRK1 Catalytic α Subunit and FLZ Proteins in Glycyrrhiza inflata Bat. Highlights Their Potential Roles in Licorice Growth and Abiotic Stress Responses.

Bat with Glycyrrhiza inflata Glycyrrhiza inflata. Inflata, we found 2 SnRK1 catalytic encoding genes and 21 FLZ genes. When transiently expressed in Nicotiana benthamiana leaf cells, a total of ten representative GiFLZ proteins interact with GiSnRK1u03b11 and overlapped subcellular localization. Many GiFLZs and GisnRK1 1u03b1 1 u03b1 1st1 u03b1 1str. 1 are regulated by drought and saline-alkaline stresses, coinciding with the presence of multiple phytohormone-responsive and stress-responsive cis-regulatory elements in the GiSnRK1 b1 and GiFLZ gene promoters, GiFLZ gene promoters, simulit u03b1 u3 snRK1 u03b1 u03b1u03b1 u03b1 saline-al stresses, saline-al u03b1 b1 u03b1-responsive cis-responsive cis-regulatory elements in the GiFLZ gene promoterK1 and GiFLZ gene promoterscis-responsive u03b1 and GiFLZ and GiFLZ1u03b1 and GiFLZs.

Source link: https://europepmc.org/article/MED/36613561


DIS3L, cytoplasmic exosome catalytic subunit, is essential for development but not cell viability in mice

To investigate DIS3L functions in mice, herein we established knock-in and knock-out mouse models. Preimplantation Dis3l -/- embryos were unaffected by their morphology and ability to produce functional embryonic stem cells, demonstrating that DIS3L is not necessary for cell viability. RNA sequencing results showed that there had been no significant changes in the transcriptome level for both embryonic stem cells and blastocysts, as well as blastocysts. These findings reveal the fundamental role of DIS3L in mRNA quality control pathways vital for proper protein synthesis in embryo development.

Source link: https://europepmc.org/article/PPR/PPR584840

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions