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http://purl.uniprot.org/citations/37327776http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/37327776http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/37327776http://www.w3.org/2000/01/rdf-schema#comment"The heme-regulated kinase HRI is activated under heme/iron deficient conditions; however, the underlying molecular mechanism is incompletely understood. Here, we show that iron-deficiency-induced HRI activation requires the mitochondrial protein DELE1. Notably, mitochondrial import of DELE1 and its subsequent protein stability are regulated by iron availability. Under steady-state conditions, DELE1 is degraded by the mitochondrial matrix-resident protease LONP1 soon after mitochondrial import. Upon iron chelation, DELE1 import is arrested, thereby stabilizing DELE1 on the mitochondrial surface to activate the HRI-mediated integrated stress response (ISR). Ablation of this DELE1-HRI-ISR pathway in an erythroid cell model enhances cell death under iron-limited conditions, suggesting a cell-protective role for this pathway in iron-demanding cell lineages. Our findings highlight mitochondrial import regulation of DELE1 as the core component of a previously unrecognized mitochondrial iron responsive pathway that elicits stress signaling following perturbation of iron homeostasis."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.org/dc/terms/identifier"doi:10.1016/j.molcel.2023.05.031"xsd:string
http://purl.uniprot.org/citations/37327776http://purl.org/dc/terms/identifier"doi:10.1016/j.molcel.2023.05.031"xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Sekine S."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Sekine S."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Jae L.T."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Jae L.T."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Sekine Y."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Sekine Y."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Eckl E.M."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Eckl E.M."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Fessler E."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Fessler E."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Houston R."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Houston R."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Narendra D.P."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/author"Narendra D.P."xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/date"2023"xsd:gYear
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/date"2023"xsd:gYear
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/name"Mol. Cell"xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/name"Mol. Cell"xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/pages"2059-2076"xsd:string
http://purl.uniprot.org/citations/37327776http://purl.uniprot.org/core/pages"2059-2076"xsd:string