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- EMDB-50317: USP1 bound to ML323 and ubiquitin conjugated to FANCD2 (ordered s... -
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Open data
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Basic information
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Title | USP1 bound to ML323 and ubiquitin conjugated to FANCD2 (ordered subset, focused refinement) | |||||||||
![]() | Globally sharpened map (B-factor 81.5) | |||||||||
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![]() | INHIBITOR / DEUBIQUITINASE / COMPLEX / ENZYME-SUBSTRATE / HYDROLASE | |||||||||
Function / homology | ![]() positive regulation of error-prone translesion synthesis / monoubiquitinated protein deubiquitination / protein deubiquitination / regulation of DNA repair / response to UV / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants ...positive regulation of error-prone translesion synthesis / monoubiquitinated protein deubiquitination / protein deubiquitination / regulation of DNA repair / response to UV / 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 / Josephin domain DUBs / 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 / 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 / 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 / Negative regulators of DDX58/IFIH1 signaling / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / Regulation of signaling by CBL / NOTCH3 Activation and Transmission of Signal to the Nucleus / Vpu mediated degradation of CD4 / Assembly of the pre-replicative complex / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Degradation of DVL / Deactivation of the beta-catenin transactivating complex / Negative regulation of FGFR3 signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / Fanconi Anemia Pathway / Peroxisomal protein import / Degradation of AXIN / Regulation of TNFR1 signaling / Negative regulation of FGFR2 signaling / Stabilization of p53 / Hh mutants are degraded by ERAD / Negative regulation of FGFR4 signaling / Activation of NF-kappaB in B cells / Downregulation of SMAD2/3:SMAD4 transcriptional activity / Negative regulation of FGFR1 signaling / EGFR downregulation / Degradation of GLI1 by the proteasome Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.7 Å | |||||||||
![]() | Rennie ML / Gundogdu M / Walden H | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural and Biochemical Insights into the Mechanism of Action of the Clinical USP1 Inhibitor, KSQ-4279. Authors: Martin Luke Rennie / Mehmet Gundogdu / Connor Arkinson / Steven Liness / Sheelagh Frame / Helen Walden / ![]() Abstract: DNA damage triggers cell signaling cascades that mediate repair. This signaling is frequently dysregulated in cancers. The proteins that mediate this signaling are potential targets for therapeutic ...DNA damage triggers cell signaling cascades that mediate repair. This signaling is frequently dysregulated in cancers. The proteins that mediate this signaling are potential targets for therapeutic intervention. Ubiquitin-specific protease 1 (USP1) is one such target, with small-molecule inhibitors already in clinical trials. Here, we use biochemical assays and cryo-electron microscopy (cryo-EM) to study the clinical USP1 inhibitor, KSQ-4279 (RO7623066), and compare this to the well-established tool compound, ML323. We find that KSQ-4279 binds to the same cryptic site of USP1 as ML323 but disrupts the protein structure in subtly different ways. Inhibitor binding drives a substantial increase in thermal stability of USP1, which may be mediated through the inhibitors filling a hydrophobic tunnel-like pocket in USP1. Our results contribute to the understanding of the mechanism of action of USP1 inhibitors at the molecular level. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 118.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 18.8 KB 18.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.9 KB | Display | ![]() |
Images | ![]() | 89.1 KB | ||
Masks | ![]() ![]() ![]() | 125 MB 125 MB 30.5 MB | ![]() | |
Filedesc metadata | ![]() | 6.9 KB | ||
Others | ![]() ![]() | 116.1 MB 116.1 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9fcjMC ![]() 9fciC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Globally sharpened map (B-factor 81.5) | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Mask #2
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-Mask #3
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Sample components
-Entire : USP1 BOUND TO ML323 AND UBIQUITIN CONJUGATED TO FANCD2
Entire | Name: USP1 BOUND TO ML323 AND UBIQUITIN CONJUGATED TO FANCD2 |
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Components |
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-Supramolecule #1: USP1 BOUND TO ML323 AND UBIQUITIN CONJUGATED TO FANCD2
Supramolecule | Name: USP1 BOUND TO ML323 AND UBIQUITIN CONJUGATED TO FANCD2 type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Polyubiquitin-C
Macromolecule | Name: Polyubiquitin-C / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 8.875125 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GPGSMQIFVK TLTGKTITLE VEPSDTIENV KAKIQDKEGI PPDQQRLIFA GKQLEDGRTL SDYNIQKEST LHLVLRLRGG UniProtKB: Polyubiquitin-C |
-Macromolecule #2: Ubiquitin carboxyl-terminal hydrolase 1
Macromolecule | Name: Ubiquitin carboxyl-terminal hydrolase 1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: ubiquitinyl hydrolase 1 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 88.390273 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GMPGVIPSES NGLSRGSPSK KNRLSLKFFQ KKETKRALDF TDSQENEEKA SEYRASEIDQ VVPAAQSSPI NCEKRENLLP FVGLNNLGN TSYLNSILQV LYFCPGFKSG VKHLFNIISR KKEALKDEAN QKDKGNCKED SLASYELICS LQSLIISVEQ L QASFLLNP ...String: GMPGVIPSES NGLSRGSPSK KNRLSLKFFQ KKETKRALDF TDSQENEEKA SEYRASEIDQ VVPAAQSSPI NCEKRENLLP FVGLNNLGN TSYLNSILQV LYFCPGFKSG VKHLFNIISR KKEALKDEAN QKDKGNCKED SLASYELICS LQSLIISVEQ L QASFLLNP EKYTDELATQ PRRLLNTLRE LNPMYEGYLQ HDAQEVLQCI LGNIQETCQL LKKEEVKNVA ELPTKVEEIP HP KEEMNGI NSIEMDSMRH SEDFKEKLPK GNGKRKSDTE FGNMKKKVKL SKEHQSLEEN QRQTRSKRKA TSDTLESPPK IIP KYISEN ESPRPSQKKS RVKINWLKSA TKQPSILSKF CSLGKITTNQ GVKGQSKENE CDPEEDLGKC ESDNTTNGCG LESP GNTVT PVNVNEVKPI NKGEEQIGFE LVEKLFQGQL VLRTRCLECE SLTERREDFQ DISVPVQEDE LSKVEESSEI SPEPK TEMK TLRWAISQFA SVERIVGEDK YFCENCHHYT EAERSLLFDK MPEVITIHLK CFAASGLEFD CYGGGLSKIN TPLLTP LKL SLEEWSTKPT NDSYGLFAVV MHSGITISSG HYTASVKVTD LNSLELDKGN FVVDQMCEIG KPEPLNEEEA RGVVENY ND EEVSIRVGGN TQPSKVLNKK NVEAIGLLAA QKSKADYELY NKASNPDKVA STAFAENRNS ETSDTTGTHE SDRNKESS D QTGINISGFE NKISYVVQSL KEYEGKWLLF DDSEVKVTEE KDFLNSLSPS TSPTSTPYLL FYKKL UniProtKB: Ubiquitin carboxyl-terminal hydrolase 1 |
-Macromolecule #3: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 3 / Number of copies: 1 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #4: 5-methyl-2-(2-propan-2-ylphenyl)-~{N}-[[4-(1,2,3-triazol-1-yl)phe...
Macromolecule | Name: 5-methyl-2-(2-propan-2-ylphenyl)-~{N}-[[4-(1,2,3-triazol-1-yl)phenyl]methyl]pyrimidin-4-amine type: ligand / ID: 4 / Number of copies: 1 / Formula: JDA |
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Molecular weight | Theoretical: 384.477 Da |
Chemical component information | ![]() ChemComp-JDA: |
-Macromolecule #5: water
Macromolecule | Name: water / type: ligand / ID: 5 / Number of copies: 29 / Formula: HOH |
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Molecular weight | Theoretical: 18.015 Da |
Chemical component information | ![]() ChemComp-HOH: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 8 |
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Grid | Model: UltrAuFoil R1.2/1.3 / Mesh: 300 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 288 K / Instrument: FEI VITROBOT MARK IV / Details: blotting for 3.0 seconds. |
Details | 9.3 uM USP1-UAF1, 1.8 uM FANCI-FANCD2Ub, 2.2 uM dsDNA (61 base-pairs), 18 uM ML323 |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |