登録情報 データベース : PDB / ID : 8r3x 構造の表示 ダウンロードとリンクタイトル Crystal structure of aPKC Iota kinase domain with LLGL2 peptide 要素LLGL scribble cell polarity complex component 2 Protein kinase C iota type 詳細キーワード CYTOSOLIC PROTEIN / Kinase / Polarity / Kinase substrate complex.機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
establishment of spindle orientation / establishment or maintenance of polarity of embryonic epithelium / Golgi vesicle budding / diacylglycerol-dependent, calcium-independent serine/threonine kinase activity / PAR polarity complex / Tight junction interactions / regulation of establishment or maintenance of cell polarity / protein kinase C / establishment of apical/basal cell polarity / diacylglycerol-dependent serine/threonine kinase activity ... establishment of spindle orientation / establishment or maintenance of polarity of embryonic epithelium / Golgi vesicle budding / diacylglycerol-dependent, calcium-independent serine/threonine kinase activity / PAR polarity complex / Tight junction interactions / regulation of establishment or maintenance of cell polarity / protein kinase C / establishment of apical/basal cell polarity / diacylglycerol-dependent serine/threonine kinase activity / L-leucine transport / myosin II binding / negative regulation of glial cell apoptotic process / regulation of Notch signaling pathway / eye photoreceptor cell development / branching involved in labyrinthine layer morphogenesis / Schmidt-Lanterman incisure / Golgi to plasma membrane transport / establishment or maintenance of epithelial cell apical/basal polarity / cellular response to chemical stress / membrane organization / cell-cell junction organization / tight junction / cortical actin cytoskeleton organization / protein targeting to membrane / labyrinthine layer blood vessel development / cortical actin cytoskeleton / positive regulation of Notch signaling pathway / establishment of cell polarity / cell leading edge / exocytosis / brush border / positive regulation of glial cell proliferation / positive regulation of endothelial cell apoptotic process / bicellular tight junction / regulation of postsynaptic membrane neurotransmitter receptor levels / p75NTR recruits signalling complexes / intercellular bridge / vesicle-mediated transport / cytoskeleton organization / secretion / response to interleukin-1 / GTPase activator activity / actin filament organization / post-embryonic development / protein localization to plasma membrane / positive regulation of D-glucose import / adherens junction / positive regulation of protein localization to plasma membrane / PDZ domain binding / positive regulation of NF-kappaB transcription factor activity / positive regulation of neuron projection development / phospholipid binding / Pre-NOTCH Transcription and Translation / Schaffer collateral - CA1 synapse / multicellular organism growth / cellular response to insulin stimulus / KEAP1-NFE2L2 pathway / cell migration / microtubule cytoskeleton / negative regulation of neuron apoptotic process / protein phosphorylation / protein kinase activity / endosome / intracellular signal transduction / cilium / apical plasma membrane / Golgi membrane / cell division / protein serine kinase activity / intracellular membrane-bounded organelle / protein serine/threonine kinase activity / negative regulation of apoptotic process / glutamatergic synapse / extracellular exosome / zinc ion binding / nucleoplasm / ATP binding / nucleus / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 Lethal(2) giant larvae protein / Lethal giant larvae homologue 2 / LLGL2 / Atypical protein kinase C iota type, catalytic domain / Protein kinase C / Protein kinase C, PB1 domain / PB1 domain / PB1 domain / PB1 domain / : ... Lethal(2) giant larvae protein / Lethal giant larvae homologue 2 / LLGL2 / Atypical protein kinase C iota type, catalytic domain / Protein kinase C / Protein kinase C, PB1 domain / PB1 domain / PB1 domain / PB1 domain / : / PB1 domain profile. / Protein kinase, C-terminal / Protein kinase C terminal domain / Diacylglycerol/phorbol-ester binding / Phorbol esters/diacylglycerol binding domain (C1 domain) / Zinc finger phorbol-ester/DAG-type signature. / Zinc finger phorbol-ester/DAG-type profile. / Protein kinase C conserved region 1 (C1) domains (Cysteine-rich domains) / Protein kinase C-like, phorbol ester/diacylglycerol-binding domain / C1-like domain superfamily / Extension to Ser/Thr-type protein kinases / AGC-kinase, C-terminal / AGC-kinase C-terminal domain profile. / WD domain, G-beta repeat / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / Protein kinase domain / Serine/Threonine protein kinases, catalytic domain / WD40/YVTN repeat-like-containing domain superfamily / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily 類似検索 - ドメイン・相同性 Protein kinase C iota type / LLGL scribble cell polarity complex component 2 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 X線回折 / シンクロトロン / 分子置換 / 解像度 : 2.591 Å 詳細データ登録者 Soriano, E.V. / Earl, C.P. / Briggs, D.C. / McDonald, N.Q. 資金援助 英国, 3件 詳細 詳細を隠す組織 認可番号 国 Wellcome Trust CC2068 英国 Cancer Research UK CC2026 英国 Medical Research Council (MRC, United Kingdom) CC2068 英国
引用ジャーナル : Nat Struct Mol Biol / 年 : 2025タイトル : Capture, mutual inhibition and release mechanism for aPKC-Par6 and its multisite polarity substrate Lgl.著者 : Christopher P Earl / Mathias Cobbaut / André Barros-Carvalho / Marina E Ivanova / David C Briggs / Eurico Morais-de-Sá / Peter J Parker / Neil Q McDonald / 要旨 : The mutually antagonistic relationship of atypical protein kinase C (aPKC) and partitioning-defective protein 6 (Par6) with the substrate lethal (2) giant larvae (Lgl) is essential for regulating ... The mutually antagonistic relationship of atypical protein kinase C (aPKC) and partitioning-defective protein 6 (Par6) with the substrate lethal (2) giant larvae (Lgl) is essential for regulating polarity across many cell types. Although aPKC-Par6 phosphorylates Lgl at three serine sites to exclude it from the apical domain, aPKC-Par6 and Lgl paradoxically form a stable kinase-substrate complex, with conflicting roles proposed for Par6. We report the structure of human aPKCι-Par6α bound to full-length Llgl1, captured through an aPKCι docking site and a Par6 contact. This complex traps a phospho-S663 Llgl1 intermediate bridging between aPKC and Par6, impeding phosphorylation progression. Thus, aPKCι is effectively inhibited by Llgl1 while Llgl1 is captured by aPKCι-Par6. Mutational disruption of the Lgl-aPKC interaction impedes complex assembly and Lgl phosphorylation, whereas disrupting the Lgl-Par6 contact promotes complex dissociation and Lgl phosphorylation. We demonstrate a Par6-regulated substrate capture-and-release model requiring binding by active Cdc42 and the apical partner Crumbs to drive complex disassembly. Our results suggest a mechanism for mutual regulation and spatial control of aPKC-Par6 and Lgl activities. 履歴 登録 2023年11月10日 登録サイト : PDBE / 処理サイト : PDBE改定 1.0 2024年11月20日 Provider : repository / タイプ : Initial release改定 1.1 2025年1月15日 Group : Database references / カテゴリ : citation / citation_authorItem : _citation.country / _citation.journal_abbrev ... _citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name 改定 1.2 2025年4月23日 Group : Database references / カテゴリ : citation / citation_authorItem : _citation.journal_volume / _citation.page_first ... _citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
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