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ProteomicsIdentification of phosphorylation sites of HA-ORP8 immunoprecipitated from cells
To candidate phosphorylation sites of ORP8 in cells and the stoichiometric change of ORP8's phosphorylation when AMPK is activated,LC-MS/MS analysis of ORP8 immunoprecipitated from serum-starved cells and cells treated with AMPK activator AICAR was performed.
ORGANISM(S): Homo sapiens (Human) 
2023-10-24 | PXD036204 | Pride
Phosphorylation Orp8 
ProteomicsIdentification of phosphorylation sites of purified ORP8 from in vitro AMPK kinase assay
We investigated the potential role of AMPK in the phosphorylation of ORP8.In vitro kinase assay using purified ORP8 and kinase-active AMPK complex confirmed that ORP8 is the direct substrate of AMPK. Phosphorylated ORP8 from in vitro kinase assay was analyzed by HPLC-MS/MS.
ORGANISM(S): Homo sapiens (Human) 
2023-10-24 | PXD036201 | Pride
Ampk Phosphorylation Orp8 
UnknownOxysterol-binding protein-related protein 8 (ORP8) increases sensitivity of hepatocellular carcinoma cells to Fas-mediated apoptosis.
Not available
S-EPMC4423679 | biostudies-literature
UnknownOrp8 deficiency in bone marrow-derived cells reduces atherosclerotic lesion progression in LDL receptor knockout mice.
Not available
S-EPMC4209969 | biostudies-literature
UnknownORP5/ORP8 localize to endoplasmic reticulum-mitochondria contacts and are involved in mitochondrial function.
Not available
S-EPMC5278607 | biostudies-literature
UnknownSec22b regulates phagosome maturation by promoting ORP8-mediated lipid exchange at endoplasmic reticulum-phagosome contact sites.
Not available
S-EPMC10550925 | biostudies-literature
UnknownINTRACELLULAR TRANSPORT. PI4P/phosphatidylserine countertransport at ORP5- and ORP8-mediated ER-plasma membrane contacts.
Not available
S-EPMC4638224 | biostudies-literature
UnknownORP5 and ORP8 bind phosphatidylinositol-4, 5-biphosphate (PtdIns(4,5)P 2) and regulate its level at the plasma membrane.
Not available
S-EPMC5624964 | biostudies-literature
UnknownORP5 and ORP8 orchestrate lipid droplet biogenesis and maintenance at ER-mitochondria contact sites.
Not available
S-EPMC9375143 | biostudies-literature
UnknownPtdSer as a signaling lipid determined by privileged localization of ORP5 and ORP8 at ER/PM junctional foci to determine PM and ER PtdSer/PI(4)P ratio and cell function.
Not available
S-EPMC10469337 | biostudies-literature
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