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- PDB-7z87: DNA-PK in the active state -

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Basic information

Entry
Database: PDB / ID: 7z87
TitleDNA-PK in the active state
Components
  • (DNA (26-MER)) x 2
  • (X-ray repair cross-complementing protein ...) x 2
  • DNA-dependent protein kinase catalytic subunit
KeywordsDNA BINDING PROTEIN / DNA-dependent protein kinase
Function / homology
Function and homology information


positive regulation of platelet formation / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / positive regulation of lymphocyte differentiation / histone H2AXS139 kinase activity ...positive regulation of platelet formation / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / positive regulation of lymphocyte differentiation / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / nonhomologous end joining complex / immature B cell differentiation / regulation of smooth muscle cell proliferation / cellular response to X-ray / regulation of epithelial cell proliferation / double-strand break repair via alternative nonhomologous end joining / double-strand break repair via classical nonhomologous end joining / nuclear telomere cap complex / Cytosolic sensors of pathogen-associated DNA / telomere capping / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / regulation of telomere maintenance / recombinational repair / protein localization to chromosome, telomeric region / U3 snoRNA binding / peptidyl-threonine phosphorylation / positive regulation of neurogenesis / maturation of 5.8S rRNA / T cell lineage commitment / cellular hyperosmotic salinity response / positive regulation of double-strand break repair via nonhomologous end joining / B cell lineage commitment / negative regulation of cGAS/STING signaling pathway / 2-LTR circle formation / hematopoietic stem cell proliferation / telomeric repeat DNA binding / negative regulation of protein phosphorylation / DNA 3'-5' helicase / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / ectopic germ cell programmed cell death / ATP-dependent activity, acting on DNA / somitogenesis / telomere maintenance via telomerase / site of DNA damage / mitotic G1 DNA damage checkpoint signaling / activation of innate immune response / neurogenesis / positive regulation of erythrocyte differentiation / telomere maintenance / cyclin binding / DNA-(apurinic or apyrimidinic site) lyase / protein modification process / DNA helicase activity / peptidyl-serine phosphorylation / cellular response to leukemia inhibitory factor / positive regulation of translation / response to gamma radiation / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / regulation of circadian rhythm / protein-DNA complex / brain development / protein destabilization / double-strand break repair via nonhomologous end joining / enzyme activator activity / intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to insulin stimulus / T cell differentiation in thymus / rhythmic process / double-strand break repair / E3 ubiquitin ligases ubiquitinate target proteins / heart development / double-stranded DNA binding / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / ficolin-1-rich granule lumen / damaged DNA binding / protein phosphorylation / RNA polymerase II-specific DNA-binding transcription factor binding / protein kinase activity / chromosome, telomeric region / non-specific serine/threonine protein kinase / transcription cis-regulatory region binding / positive regulation of apoptotic process / ribonucleoprotein complex / protein domain specific binding / innate immune response / protein serine kinase activity / negative regulation of DNA-templated transcription / protein serine/threonine kinase activity / DNA damage response / Neutrophil degranulation
Similarity search - Function
Ku70; Chain: A; domain 4 / Ku70; Chain: A; domain 4 - #10 / DNA-dependent protein kinase catalytic subunit, CC3 / DNA-dependent protein kinase catalytic subunit, catalytic domain / DNA-dependent protein kinase catalytic subunit, CC5 / DNA-dependent protein kinase catalytic subunit, CC1/2 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC3 / DNA-PKcs, CC5 / DNA-PKcs, N-terminal ...Ku70; Chain: A; domain 4 / Ku70; Chain: A; domain 4 - #10 / DNA-dependent protein kinase catalytic subunit, CC3 / DNA-dependent protein kinase catalytic subunit, catalytic domain / DNA-dependent protein kinase catalytic subunit, CC5 / DNA-dependent protein kinase catalytic subunit, CC1/2 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC3 / DNA-PKcs, CC5 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC1/2 / NUC194 / Ku70, bridge and pillars domain superfamily / : / Ku70 / Ku, C-terminal / Ku, C-terminal domain superfamily / Ku C terminal domain like / Ku80 / Ku70/Ku80 C-terminal arm / Ku70/Ku80 C-terminal arm / Ku70/Ku80, N-terminal alpha/beta / Ku70/Ku80 N-terminal alpha/beta domain / Ku70/Ku80 beta-barrel domain / Ku70 and Ku80 are 70kDa and 80kDa subunits of the Lupus Ku autoantigen / Ku70/Ku80 beta-barrel domain / SPOC-like, C-terminal domain superfamily / SAP domain superfamily / SAP motif profile. / SAP domain / Putative DNA-binding (bihelical) motif predicted to be involved in chromosomal organisation / SAP domain / von Willebrand factor, type A domain / : / FATC domain / PIK-related kinase, FAT / FAT domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / Leucine-rich Repeat Variant / Leucine-rich Repeat Variant / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / von Willebrand factor (vWF) type A domain / von Willebrand factor, type A / von Willebrand factor A-like domain superfamily / Armadillo-like helical / Alpha Horseshoe / Armadillo-type fold / Protein kinase-like domain superfamily / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Chem-1IX / DNA / DNA (> 10) / DNA repair protein Ku70 / DNA repair protein Ku80 / DNA-dependent protein kinase catalytic subunit
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.91 Å
AuthorsLiang, S. / Blundell, T.L.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Wellcome Trust United Kingdom
CitationJournal: Nat Struct Mol Biol / Year: 2023
Title: Human DNA-dependent protein kinase activation mechanism.
Authors: Shikang Liang / Tom L Blundell /
Abstract: DNA-dependent protein kinase (DNA-PK), a multicomponent complex including the DNA-PK catalytic subunit and Ku70/80 heterodimer together with DNA, is central to human DNA damage response and repair. ...DNA-dependent protein kinase (DNA-PK), a multicomponent complex including the DNA-PK catalytic subunit and Ku70/80 heterodimer together with DNA, is central to human DNA damage response and repair. Using a DNA-PK-selective inhibitor (M3814), we identified from one dataset two cryo-EM structures of the human DNA-PK complex in different states, the intermediate state and the active state. Here we show that activation of the kinase is regulated through conformational changes caused by the binding ligand and the string region (residues 802-846) of the DNA-PK catalytic subunit, particularly the helix-hairpin-helix motif (residues 816-836) that interacts with DNA. These observations demonstrate the regulatory role of the ligand and explain why DNA-PK is DNA dependent. Cooperation and coordination among binding partners, disordered flexible regions and mechanically flexible HEAT repeats modulate the activation of the kinase. Together with previous findings, these results provide a better molecular understanding of DNA-PK catalysis.
History
DepositionMar 16, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 18, 2023Provider: repository / Type: Initial release
Revision 1.1Mar 1, 2023Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.2Jul 24, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond / em_admin / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: DNA-dependent protein kinase catalytic subunit
B: X-ray repair cross-complementing protein 6
C: X-ray repair cross-complementing protein 5
D: DNA (26-MER)
E: DNA (26-MER)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)638,8916
Polymers638,4095
Non-polymers4821
Water3,495194
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 1 types, 1 molecules A

#1: Protein DNA-dependent protein kinase catalytic subunit / DNA-PK catalytic subunit / DNA-PKcs / DNPK1 / p460


Mass: 469673.219 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
References: UniProt: P78527, non-specific serine/threonine protein kinase

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X-ray repair cross-complementing protein ... , 2 types, 2 molecules BC

#2: Protein X-ray repair cross-complementing protein 6 / 5'-deoxyribose-5-phosphate lyase Ku70 / 5'-dRP lyase Ku70 / 70 kDa subunit of Ku antigen / ATP- ...5'-deoxyribose-5-phosphate lyase Ku70 / 5'-dRP lyase Ku70 / 70 kDa subunit of Ku antigen / ATP-dependent DNA helicase 2 subunit 1 / ATP-dependent DNA helicase II 70 kDa subunit / CTC box-binding factor 75 kDa subunit / CTCBF / DNA repair protein XRCC6 / Lupus Ku autoantigen protein p70 / Ku70 / Thyroid-lupus autoantigen / TLAA / X-ray repair complementing defective repair in Chinese hamster cells 6


Mass: 69945.039 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC6, G22P1 / Production host: Spodoptera frugiperda (fall armyworm)
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
#3: Protein X-ray repair cross-complementing protein 5 / 86 kDa subunit of Ku antigen / ATP-dependent DNA helicase 2 subunit 2 / ATP-dependent DNA helicase ...86 kDa subunit of Ku antigen / ATP-dependent DNA helicase 2 subunit 2 / ATP-dependent DNA helicase II 80 kDa subunit / CTC box-binding factor 85 kDa subunit / CTCBF / DNA repair protein XRCC5 / Ku80 / Ku86 / Lupus Ku autoantigen protein p86 / Nuclear factor IV / Thyroid-lupus autoantigen / TLAA / X-ray repair complementing defective repair in Chinese hamster cells 5 (double-strand-break rejoining)


Mass: 82812.438 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC5, G22P2 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: P13010, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement

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DNA chain , 2 types, 2 molecules DE

#4: DNA chain DNA (26-MER)


Mass: 7900.079 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)
#5: DNA chain DNA (26-MER)


Mass: 8078.203 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)

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Non-polymers , 2 types, 195 molecules

#6: Chemical ChemComp-1IX / (~{S})-[2-chloranyl-4-fluoranyl-5-(7-morpholin-4-ylquinazolin-4-yl)phenyl]-(6-methoxypyridazin-3-yl)methanol / Nedisertib


Mass: 481.907 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C24H21ClFN5O3 / Feature type: SUBJECT OF INVESTIGATION
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 194 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human DNA-dependent protein kinase / Type: COMPLEX / Entity ID: #1-#5 / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.6
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2300 nm / Nominal defocus min: 1100 nm
Image recordingElectron dose: 47.22 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.91 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 275300 / Symmetry type: POINT

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