Organelle or cellular component: NHEJ super-complex (dimer)
Organelle or cellular component: DNA-dependent protein kinase catalytic subunit
Protein or peptide: DNA-dependent protein kinase catalytic subunit,DNA-dependent protein kinase catalytic subunit,DNA-PKcs
Organelle or cellular component: X-ray repair cross-complementing proteins 5 and 6
Protein or peptide: X-ray repair cross-complementing protein 6
Protein or peptide: X-ray repair cross-complementing protein 5
Organelle or cellular component: Repair protein and ligase
Protein or peptide: DNA repair protein XRCC4
Protein or peptide: DNA ligase 4
Protein or peptide: Non-homologous end-joining factor 1
Organelle or cellular component: DNA
DNA: DNA (27-MER)
DNA: DNA (28-MER)
DNA: DNA (27-MER)
Keywords
NHEJ / DNA-PKcs / Ku70/80 / XLF / XRCC4 / DNA-LigaseIV / DNA BINDING PROTEIN
Function / homology
Function and homology information
FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / DNA ligase IV complex / DNA ligase activity / positive regulation of platelet formation / DN2 thymocyte differentiation / DNA double-strand break attachment to nuclear envelope / DNA ligase (ATP) / Ku70:Ku80 complex ...FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / DNA ligase IV complex / DNA ligase activity / positive regulation of platelet formation / DN2 thymocyte differentiation / DNA double-strand break attachment to nuclear envelope / DNA ligase (ATP) / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA ligase (ATP) activity / 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 / nucleotide-excision repair, DNA gap filling / single strand break repair / immature B cell differentiation / V(D)J recombination / 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 / isotype switching / double-strand break repair via classical nonhomologous end joining / nuclear telomere cap complex / Cytosolic sensors of pathogen-associated DNA / protein localization to site of double-strand break / telomere capping / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / recombinational repair / regulation of telomere maintenance / positive regulation of neurogenesis / U3 snoRNA binding / DNA biosynthetic process / protein localization to chromosome, telomeric region / T cell lineage commitment / maturation of 5.8S rRNA / cellular response to lithium ion / cellular hyperosmotic salinity response / positive regulation of double-strand break repair via nonhomologous end joining / negative regulation of cGAS/STING signaling pathway / B cell lineage commitment / 2-LTR circle formation / response to ionizing radiation / hematopoietic stem cell proliferation / peptidyl-threonine phosphorylation / ligase activity / telomeric DNA binding / DNA 3'-5' helicase / negative regulation of protein phosphorylation / positive regulation of protein kinase activity / T cell differentiation / somatic stem cell population maintenance / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / response to X-ray / chromosome organization / somitogenesis / ATP-dependent activity, acting on DNA / ectopic germ cell programmed cell death / site of DNA damage / telomere maintenance via telomerase / SUMOylation of DNA damage response and repair proteins / condensed chromosome / DNA polymerase binding / mitotic G1 DNA damage checkpoint signaling / neurogenesis / activation of innate immune response / DNA helicase activity / telomere maintenance / positive regulation of erythrocyte differentiation / B cell differentiation / cyclin binding / DNA-(apurinic or apyrimidinic site) lyase / central nervous system development / stem cell proliferation / positive regulation of translation / cellular response to leukemia inhibitory factor / response to gamma radiation / cellular response to ionizing radiation / protein modification process / Nonhomologous End-Joining (NHEJ) / small-subunit processome / enzyme activator activity / peptidyl-serine phosphorylation / protein-DNA complex / cellular response to gamma radiation / regulation of circadian rhythm / brain development / base-excision repair Similarity search - Function
XLF, N-terminal / : / : / XLF N-terminal domain / XLF protein coiled-coil region / DNA ligase IV domain / DNA ligase IV / DNA ligase 4 / DNA Ligase 4, adenylation domain / XRCC4, N-terminal domain superfamily ...XLF, N-terminal / : / : / XLF N-terminal domain / XLF protein coiled-coil region / DNA ligase IV domain / DNA ligase IV / DNA ligase 4 / DNA Ligase 4, adenylation domain / XRCC4, N-terminal domain superfamily / DNA repair protein XRCC4 / : / : / : / XRCC4 N-terminal domain / XRCC4 coiled-coil / XRCC4 C-terminal region / XRCC4-like, N-terminal domain superfamily / 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 / DNA ligase, ATP-dependent / DNA ligase, ATP-dependent, N-terminal / DNA ligase, ATP-dependent, N-terminal domain superfamily / : / DNA ligase N terminus / Ku70 / Ku, C-terminal / Ku, C-terminal domain superfamily / Ku C terminal domain like / ATP-dependent DNA ligase AMP-binding site. / ATP-dependent DNA ligase signature 2. / DNA ligase, ATP-dependent, C-terminal / Ku80 / ATP dependent DNA ligase C terminal region / Ku70/Ku80 C-terminal arm / Ku70/Ku80 C-terminal arm / Ku70/Ku80, N-terminal alpha/beta / Ku70/Ku80 N-terminal alpha/beta domain / DNA ligase, ATP-dependent, conserved site / ATP-dependent DNA ligase family profile. / 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 / DNA ligase, ATP-dependent, central / ATP dependent DNA ligase domain / SAP domain superfamily / DNA repair protein XRCC4-like, C-terminal / SAP motif profile. / SAP domain / Putative DNA-binding (bihelical) motif predicted to be involved in chromosomal organisation / SAP domain / : / FATC domain / PIK-related kinase, FAT / FAT domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / BRCA1 C Terminus (BRCT) domain / breast cancer carboxy-terminal domain / 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 / BRCT domain profile. / von Willebrand factor, type A / BRCT domain / BRCT domain superfamily / von Willebrand factor A-like domain superfamily / Armadillo-like helical / Armadillo-type fold / Nucleic acid-binding, OB-fold / Protein kinase-like domain superfamily Similarity search - Domain/homology
DNA repair protein Ku70 / X-ray repair cross-complementing protein 5 / DNA ligase 4 / DNA-dependent protein kinase catalytic subunit / DNA repair protein XRCC4 / Non-homologous end-joining factor 1 Similarity search - Component
Biological species
Homo sapiens (human)
Method
single particle reconstruction / cryo EM / Resolution: 4.14 Å
Journal: Mol Cell / Year: 2021 Title: Cryo-EM of NHEJ supercomplexes provides insights into DNA repair. Authors: Amanda K Chaplin / Steven W Hardwick / Antonia Kefala Stavridi / Christopher J Buehl / Noah J Goff / Virginie Ropars / Shikang Liang / Taiana Maia De Oliveira / Dimitri Y Chirgadze / ...Authors: Amanda K Chaplin / Steven W Hardwick / Antonia Kefala Stavridi / Christopher J Buehl / Noah J Goff / Virginie Ropars / Shikang Liang / Taiana Maia De Oliveira / Dimitri Y Chirgadze / Katheryn Meek / Jean-Baptiste Charbonnier / Tom L Blundell / Abstract: Non-homologous end joining (NHEJ) is one of two critical mechanisms utilized in humans to repair DNA double-strand breaks (DSBs). Unrepaired or incorrect repair of DSBs can lead to apoptosis or ...Non-homologous end joining (NHEJ) is one of two critical mechanisms utilized in humans to repair DNA double-strand breaks (DSBs). Unrepaired or incorrect repair of DSBs can lead to apoptosis or cancer. NHEJ involves several proteins, including the Ku70/80 heterodimer, DNA-dependent protein kinase catalytic subunit (DNA-PKcs), X-ray cross-complementing protein 4 (XRCC4), XRCC4-like factor (XLF), and ligase IV. These core proteins bind DSBs and ligate the damaged DNA ends. However, details of the structural assembly of these proteins remain unclear. Here, we present cryo-EM structures of NHEJ supercomplexes that are composed of these core proteins and DNA, revealing the detailed structural architecture of this assembly. We describe monomeric and dimeric forms of this supercomplex and also propose the existence of alternate dimeric forms of long-range synaptic complexes. Finally, we show that mutational disruption of several structural features within these NHEJ complexes negatively affects DNA repair.
History
Deposition
Feb 5, 2021
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Header (metadata) release
Aug 18, 2021
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Map release
Aug 18, 2021
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Update
Jul 10, 2024
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Current status
Jul 10, 2024
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
UniProtKB: DNA-dependent protein kinase catalytic subunit
+
Macromolecule #2: X-ray repair cross-complementing protein 6
Macromolecule
Name: X-ray repair cross-complementing protein 6 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO EC number: Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
Macromolecule #3: X-ray repair cross-complementing protein 5
Macromolecule
Name: X-ray repair cross-complementing protein 5 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO EC number: Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
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