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- PDB-8a9j: Cryo-EM structure of USP1-UAF1 bound to FANCI and mono-ubiquitina... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8a9j | |||||||||
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Title | Cryo-EM structure of USP1-UAF1 bound to FANCI and mono-ubiquitinated FANCD2 without ML323 (consensus reconstruction) | |||||||||
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![]() | HYDROLASE / Deubiquitinase / Complex / Enzyme-Substrate / Inhibitor | |||||||||
Function / homology | ![]() regulation of protein monoubiquitination / positive regulation of error-prone translesion synthesis / Signaling by cytosolic PDGFRA and PDGFRB fusion proteins / regulation of CD40 signaling pathway / regulation of regulatory T cell differentiation / gamete generation / double-strand break repair involved in meiotic recombination / monoubiquitinated protein deubiquitination / homologous chromosome pairing at meiosis / neuronal stem cell population maintenance ...regulation of protein monoubiquitination / positive regulation of error-prone translesion synthesis / Signaling by cytosolic PDGFRA and PDGFRB fusion proteins / regulation of CD40 signaling pathway / regulation of regulatory T cell differentiation / gamete generation / double-strand break repair involved in meiotic recombination / monoubiquitinated protein deubiquitination / homologous chromosome pairing at meiosis / neuronal stem cell population maintenance / brain morphogenesis / deubiquitinase activator activity / mitotic intra-S DNA damage checkpoint signaling / DNA repair complex / skeletal system morphogenesis / skin development / seminiferous tubule development / homeostasis of number of cells / protein deubiquitination / single fertilization / embryonic organ development / positive regulation of double-strand break repair via homologous recombination / interstrand cross-link repair / regulation of DNA repair / response to UV / condensed chromosome / DNA polymerase binding / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Negative regulation of FLT3 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Constitutive Signaling by NOTCH1 HD Domain Mutants / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / APC-Cdc20 mediated degradation of Nek2A / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of pyruvate metabolism / Regulation of innate immune responses to cytosolic DNA / NF-kB is activated and signals survival / Downregulation of ERBB2:ERBB3 signaling / Pexophagy / NRIF signals cell death from the nucleus / Regulation of PTEN localization / VLDLR internalisation and degradation / Activated NOTCH1 Transmits Signal to the Nucleus / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Regulation of BACH1 activity / MAP3K8 (TPL2)-dependent MAPK1/3 activation / TICAM1, RIP1-mediated IKK complex recruitment / Translesion synthesis by REV1 / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLK / InlB-mediated entry of Listeria monocytogenes into host cell / Downregulation of TGF-beta receptor signaling / positive regulation of epithelial cell proliferation / Josephin domain DUBs / ubiquitin binding / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / Regulation of activated PAK-2p34 by proteasome mediated degradation / Translesion synthesis by POLI / IKK complex recruitment mediated by RIP1 / positive regulation of protein ubiquitination / Gap-filling DNA repair synthesis and ligation in GG-NER / PINK1-PRKN Mediated Mitophagy / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / TNFR1-induced NF-kappa-B signaling pathway / skeletal system development / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / TCF dependent signaling in response to WNT / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / response to gamma radiation / positive regulation of receptor signaling pathway via JAK-STAT / Regulation of NF-kappa B signaling / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / activated TAK1 mediates p38 MAPK activation Similarity search - Function | |||||||||
Biological species | ![]() synthetic construct (others) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
![]() | Rennie, M.L. / Walden, H. | |||||||||
Funding support | European Union, ![]()
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![]() | ![]() Title: Cryo-EM reveals a mechanism of USP1 inhibition through a cryptic binding site. Authors: Martin L Rennie / Connor Arkinson / Viduth K Chaugule / Helen Walden / ![]() Abstract: Repair of DNA damage is critical to genomic integrity and frequently disrupted in cancers. Ubiquitin-specific protease 1 (USP1), a nucleus-localized deubiquitinase, lies at the interface of multiple ...Repair of DNA damage is critical to genomic integrity and frequently disrupted in cancers. Ubiquitin-specific protease 1 (USP1), a nucleus-localized deubiquitinase, lies at the interface of multiple DNA repair pathways and is a promising drug target for certain cancers. Although multiple inhibitors of this enzyme, including one in phase 1 clinical trials, have been established, their binding mode is unknown. Here, we use cryo-electron microscopy to study an assembled enzyme-substrate-inhibitor complex of USP1 and the well-established inhibitor, ML323. Achieving 2.5-Å resolution, with and without ML323, we find an unusual binding mode in which the inhibitor disrupts part of the hydrophobic core of USP1. The consequent conformational changes in the secondary structure lead to subtle rearrangements in the active site that underlie the mechanism of inhibition. These structures provide a platform for structure-based drug design targeting USP1. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 574.6 KB | Display | ![]() |
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PDB format | ![]() | 443.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 15284MC ![]() 7zh3C ![]() 7zh4C ![]() 8a9kC C: citing same article ( M: map data used to model this data |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Fanconi anemia group ... , 2 types, 2 molecules AB
#1: Protein | Mass: 150459.125 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Protein | Mass: 164623.828 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Ubiquitin conjugated to K561 / Source: (gene. exp.) ![]() ![]() ![]() |
-Protein , 3 types, 3 molecules CDE
#3: Protein | Mass: 8875.125 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#4: Protein | Mass: 88390.273 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#5: Protein | Mass: 78300.656 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-DNA chain / Non-polymers , 2 types, 3 molecules ST

#6: DNA chain | Mass: 5177.820 Da / Num. of mol.: 2 / Source method: obtained synthetically Details: Actual sequence: TGATCAGAGGTCATTTGAATTCATGGCTTCGAGCTTCATGTAGAGTCGACGGTGCTGGGAT Source: (synth.) synthetic construct (others) #7: Chemical | ChemComp-ZN / | |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component |
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Source (natural) | Organism: ![]() | ||||||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||
Buffer solution | pH: 8 | ||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: 9.3 uM USP1-UAF1, 1.8 uM FANCI-FANCD2Ub, 2.2 uM dsDNA (61 base-pairs), 18 uM ML323 | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 288 K / Details: blotted for 3.0 secs before plunging |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | |||||||||||||||||||||||||||||||||||
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EM software |
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Image processing | Details: 2x binning | |||||||||||||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 6716868 | |||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 583484 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||
Atomic model building | B value: 94.9 / Space: REAL | |||||||||||||||||||||||||||||||||||
Atomic model building | 3D fitting-ID: 1 / Source name: PDB / Type: experimental model
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Refine LS restraints |
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