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基本情報
登録情報 | データベース: PDB / ID: 7okq | ||||||
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タイトル | Cryo-EM Structure of the DDB1-DCAF1-CUL4A-RBX1 Complex | ||||||
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![]() | LIGASE / ubiquitin / E3 / protein degradation | ||||||
機能・相同性 | ![]() cell competition in a multicellular organism / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / V(D)J recombination / cellular response to chemical stress / positive regulation by virus of viral protein levels in host cell / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex ...cell competition in a multicellular organism / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / V(D)J recombination / cellular response to chemical stress / positive regulation by virus of viral protein levels in host cell / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / regulation of nucleotide-excision repair / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / Cul4-RING E3 ubiquitin ligase complex / positive regulation of protein autoubiquitination / UV-damage excision repair / protein neddylation / NEDD8 ligase activity / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition / SCF ubiquitin ligase complex / WD40-repeat domain binding / Cul2-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of mitophagy / Prolactin receptor signaling / negative regulation of reproductive process / negative regulation of developmental process / hemopoiesis / cullin family protein binding / viral release from host cell / somatic stem cell population maintenance / protein monoubiquitination / positive regulation of G1/S transition of mitotic cell cycle / ectopic germ cell programmed cell death / ubiquitin-like ligase-substrate adaptor activity / positive regulation of viral genome replication / proteasomal protein catabolic process / protein K48-linked ubiquitination / Nuclear events stimulated by ALK signaling in cancer / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / positive regulation of gluconeogenesis / negative regulation of insulin receptor signaling pathway / post-translational protein modification / B cell differentiation / intrinsic apoptotic signaling pathway / T cell activation / Regulation of BACH1 activity / nuclear estrogen receptor binding / nucleotide-excision repair / cellular response to amino acid stimulus / Degradation of DVL / Degradation of GLI1 by the proteasome / Recognition of DNA damage by PCNA-containing replication complex / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / negative regulation of canonical Wnt signaling pathway / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / regulation of circadian rhythm / DNA Damage Recognition in GG-NER / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / NOTCH1 Intracellular Domain Regulates Transcription / Formation of TC-NER Pre-Incision Complex / Wnt signaling pathway / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / G1/S transition of mitotic cell cycle / Regulation of expression of SLITs and ROBOs / Formation of Incision Complex in GG-NER / fibrillar center / Interleukin-1 signaling / Orc1 removal from chromatin / Dual incision in TC-NER / Regulation of RAS by GAPs / protein polyubiquitination / positive regulation of protein catabolic process / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RUNX2 expression and activity / cellular response to UV / KEAP1-NFE2L2 pathway 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 8.4 Å | ||||||
![]() | Mohamed, W.I. / Schenk, A.D. / Kempf, G. / Cavadini, S. / Thoma, N.H. | ||||||
![]() | ![]() タイトル: The CRL4 cullin-RING ubiquitin ligase is activated following a switch in oligomerization state. 著者: Weaam I Mohamed / Andreas D Schenk / Georg Kempf / Simone Cavadini / Anja Basters / Alessandro Potenza / Wassim Abdul Rahman / Julius Rabl / Kurt Reichermeier / Nicolas H Thomä / ![]() ![]() 要旨: The cullin-4-based RING-type (CRL4) family of E3 ubiquitin ligases functions together with dedicated substrate receptors. Out of the ˜29 CRL4 substrate receptors reported, the DDB1- and CUL4- ...The cullin-4-based RING-type (CRL4) family of E3 ubiquitin ligases functions together with dedicated substrate receptors. Out of the ˜29 CRL4 substrate receptors reported, the DDB1- and CUL4-associated factor 1 (DCAF1) is essential for cellular survival and growth, and its deregulation has been implicated in tumorigenesis. We carried out biochemical and structural studies to examine the structure and mechanism of the CRL4 ligase. In the 8.4 Å cryo-EM map of CRL4 , four CUL4-RBX1-DDB1-DCAF1 protomers are organized into two dimeric sub-assemblies. In this arrangement, the WD40 domain of DCAF1 mediates binding with the cullin C-terminal domain (CTD) and the RBX1 subunit of a neighboring CRL4 protomer. This renders RBX1, the catalytic subunit of the ligase, inaccessible to the E2 ubiquitin-conjugating enzymes. Upon CRL4 activation by neddylation, the interaction between the cullin CTD and the neighboring DCAF1 protomer is broken, and the complex assumes an active dimeric conformation. Accordingly, a tetramerization-deficient CRL4 mutant has higher ubiquitin ligase activity compared to the wild-type. This study identifies a novel mechanism by which unneddylated and substrate-free CUL4 ligases can be maintained in an inactive state. | ||||||
履歴 |
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 1.3 MB | 表示 | ![]() |
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PDB形式 | ![]() | 839.3 KB | 表示 | ![]() |
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その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 129394.898 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: タンパク質 | 分子量: 171279.094 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: Q9Y4B6, non-specific serine/threonine protein kinase #3: タンパク質 | 分子量: 86702.836 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: タンパク質 | 分子量: 13497.240 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: CRL4(DCAF1) / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 45 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||
3次元再構成 | 解像度: 8.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 14000 / 対称性のタイプ: POINT | |||||||||||||||||||||
原子モデル構築 | B value: 596 / プロトコル: FLEXIBLE FIT / 空間: REAL / Target criteria: Real-space cross-correlation | |||||||||||||||||||||
原子モデル構築 |
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