+Open data
-Basic information
Entry | Database: PDB / ID: 7lsy | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | NHEJ Short-range synaptic complex | |||||||||||||||||||||
Components |
| |||||||||||||||||||||
Keywords | DNA BINDING PROTEIN/DNA / NHEJ / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||||||||||||||
Function / homology | Function and homology information DNA ligation involved in DNA recombination / T cell receptor V(D)J recombination / FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / pro-B cell differentiation / DNA ligase IV complex / positive regulation of lymphocyte differentiation / DNA ligation involved in DNA repair / small-subunit processome assembly ...DNA ligation involved in DNA recombination / T cell receptor V(D)J recombination / FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / pro-B cell differentiation / DNA ligase IV complex / positive regulation of lymphocyte differentiation / DNA ligation involved in DNA repair / small-subunit processome assembly / DNA ligase activity / Ku70:Ku80 complex / DN2 thymocyte differentiation / DNA-dependent protein kinase complex / immunoglobulin V(D)J recombination / negative regulation of t-circle formation / DNA end binding / DNA ligase (ATP) / DNA-dependent protein kinase-DNA ligase 4 complex / nonhomologous end joining complex / DNA ligase (ATP) activity / cellular response to X-ray / regulation of smooth muscle cell proliferation / single strand break repair / Cytosolic sensors of pathogen-associated DNA / nucleotide-excision repair, DNA gap filling / DNA ligation / V(D)J recombination / IRF3-mediated induction of type I IFN / nuclear telomere cap complex / double-strand break repair via classical nonhomologous end joining / isotype switching / protein localization to site of double-strand break / positive regulation of catalytic activity / U3 snoRNA binding / recombinational repair / regulation of telomere maintenance / protein localization to chromosome, telomeric region / cellular response to fatty acid / positive regulation of neurogenesis / cellular hyperosmotic salinity response / hematopoietic stem cell proliferation / response to ionizing radiation / cellular response to lithium ion / DNA biosynthetic process / telomeric DNA binding / 2-LTR circle formation / ligase activity / : / site of DNA damage / somatic stem cell population maintenance / Lyases; Carbon-oxygen lyases; Other carbon-oxygen lyases / response to X-ray / T cell differentiation / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / positive regulation of protein kinase activity / chromosome organization / ATP-dependent activity, acting on DNA / SUMOylation of DNA damage response and repair proteins / DNA polymerase binding / condensed chromosome / activation of innate immune response / enzyme activator activity / positive regulation of telomere maintenance via telomerase / DNA helicase activity / telomere maintenance / cyclin binding / B cell differentiation / neurogenesis / protein-DNA complex / stem cell proliferation / response to gamma radiation / cellular response to leukemia inhibitory factor / central nervous system development / small-subunit processome / cellular response to ionizing radiation / Nonhomologous End-Joining (NHEJ) / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / cellular response to gamma radiation / fibrillar center / double-strand break repair via nonhomologous end joining / establishment of integrated proviral latency / positive regulation of fibroblast proliferation / double-strand break repair / site of double-strand break / T cell differentiation in thymus / double-stranded DNA binding / fibroblast proliferation / scaffold protein binding / secretory granule lumen / DNA recombination / in utero embryonic development / neuron apoptotic process / negative regulation of neuron apoptotic process / transcription regulator complex / ficolin-1-rich granule lumen / cell population proliferation / damaged DNA binding / chromosome, telomeric region Similarity search - Function | |||||||||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8.4 Å | |||||||||||||||||||||
Authors | He, Y. / Chen, S. | |||||||||||||||||||||
Funding support | United States, 6items
| |||||||||||||||||||||
Citation | Journal: Nature / Year: 2021 Title: Structural basis of long-range to short-range synaptic transition in NHEJ. Authors: Siyu Chen / Linda Lee / Tasmin Naila / Susan Fishbain / Annie Wang / Alan E Tomkinson / Susan P Lees-Miller / Yuan He / Abstract: DNA double-strand breaks (DSBs) are a highly cytotoxic form of DNA damage and the incorrect repair of DSBs is linked to carcinogenesis. The conserved error-prone non-homologous end joining (NHEJ) ...DNA double-strand breaks (DSBs) are a highly cytotoxic form of DNA damage and the incorrect repair of DSBs is linked to carcinogenesis. The conserved error-prone non-homologous end joining (NHEJ) pathway has a key role in determining the effects of DSB-inducing agents that are used to treat cancer as well as the generation of the diversity in antibodies and T cell receptors. Here we applied single-particle cryo-electron microscopy to visualize two key DNA-protein complexes that are formed by human NHEJ factors. The Ku70/80 heterodimer (Ku), the catalytic subunit of the DNA-dependent protein kinase (DNA-PKcs), DNA ligase IV (LigIV), XRCC4 and XLF form a long-range synaptic complex, in which the DNA ends are held approximately 115 Å apart. Two DNA end-bound subcomplexes comprising Ku and DNA-PKcs are linked by interactions between the DNA-PKcs subunits and a scaffold comprising LigIV, XRCC4, XLF, XRCC4 and LigIV. The relative orientation of the DNA-PKcs molecules suggests a mechanism for autophosphorylation in trans, which leads to the dissociation of DNA-PKcs and the transition into the short-range synaptic complex. Within this complex, the Ku-bound DNA ends are aligned for processing and ligation by the XLF-anchored scaffold, and a single catalytic domain of LigIV is stably associated with a nick between the two Ku molecules, which suggests that the joining of both strands of a DSB involves both LigIV molecules. | |||||||||||||||||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7lsy.cif.gz | 856.9 KB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb7lsy.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7lsy.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7lsy_validation.pdf.gz | 953.8 KB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 7lsy_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | 7lsy_validation.xml.gz | 137 KB | Display | |
Data in CIF | 7lsy_validation.cif.gz | 203.5 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ls/7lsy ftp://data.pdbj.org/pub/pdb/validation_reports/ls/7lsy | HTTPS FTP |
-Related structure data
Related structure data | 23509MC 7lt3C M: map data used to model this data C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
-X-ray repair cross-complementing protein ... , 2 types, 4 molecules AJBK
#1: Protein | Mass: 68872.875 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC6, G22P1 / Production host: unidentified baculovirus References: UniProt: P12956, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement, Lyases; Carbon-oxygen lyases; Other carbon-oxygen lyases #2: Protein | Mass: 82812.438 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC5, G22P2 / Production host: unidentified baculovirus References: UniProt: P13010, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement |
---|
-DNA chain , 5 types, 5 molecules DEMNV
#3: DNA chain | Mass: 7936.151 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
---|---|
#4: DNA chain | Mass: 4284.812 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
#7: DNA chain | Mass: 4271.830 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
#8: DNA chain | Mass: 7964.145 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
#9: DNA chain | Mass: 6185.046 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
-Protein , 3 types, 8 molecules FGOPHIXY
#5: Protein | Mass: 38337.703 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC4 / Production host: unidentified baculovirus / References: UniProt: Q13426 #6: Protein | Mass: 33372.234 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NHEJ1, XLF / Production host: Escherichia coli (E. coli) / References: UniProt: Q9H9Q4 #10: Protein | Mass: 104124.953 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: LIG4 / Production host: unidentified baculovirus / References: UniProt: P49917, DNA ligase (ATP) |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Short-range synaptic complex of NHEJ / Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Molecular weight | Value: 0.72 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||
Buffer solution | pH: 7.9 | ||||||||||||||||||||||||||||||
Buffer component |
| ||||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R3.5/1 | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: DARK FIELD / Nominal magnification: 30000 X / Nominal defocus max: 4000 nm / Nominal defocus min: 1500 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm / Alignment procedure: BASIC |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 0.0426 sec. / Electron dose: 46 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 2 / Num. of real images: 32723 |
Image scans | Width: 11520 / Height: 8184 |
-Processing
EM software |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1766936 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 8.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 175866 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL / Target criteria: Correlation coefficient |