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 / DN2 thymocyte differentiation / positive regulation of ligase activity / DNA ligase IV complex / positive regulation of platelet formation / DNA ligase activity / DNA double-strand break attachment to nuclear envelope / Ku70:Ku80 complex / T cell receptor V(D)J recombination ...FHA domain binding / positive regulation of chromosome organization / DN2 thymocyte differentiation / positive regulation of ligase activity / DNA ligase IV complex / positive regulation of platelet formation / DNA ligase activity / DNA double-strand break attachment to nuclear envelope / Ku70:Ku80 complex / T cell receptor V(D)J recombination / DNA ligase (ATP) / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / DNA ligase (ATP) activity / 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 / double-strand break repair via classical nonhomologous end joining / isotype switching / 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 / 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 response to lithium ion / cellular hyperosmotic salinity response / DNA biosynthetic process / 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 / response to ionizing radiation / hematopoietic stem cell proliferation / AMP binding / ligase activity / telomeric repeat DNA binding / negative regulation of protein phosphorylation / DNA 3'-5' helicase / T cell differentiation / somatic stem cell population maintenance / 5'-deoxyribose-5-phosphate lyase activity / chromosome organization / hematopoietic stem cell differentiation / response to X-ray / ectopic germ cell programmed cell death / ATP-dependent activity, acting on DNA / somitogenesis / telomere maintenance via telomerase / SUMOylation of DNA damage response and repair proteins / site of DNA damage / condensed chromosome / mitotic G1 DNA damage checkpoint signaling / DNA polymerase binding / activation of innate immune response / neurogenesis / positive regulation of erythrocyte differentiation / B cell differentiation / telomere maintenance / cyclin binding / stem cell proliferation / DNA-(apurinic or apyrimidinic site) lyase / protein modification process / DNA helicase activity / peptidyl-serine phosphorylation / cellular response to leukemia inhibitory factor / central nervous system development / cellular response to ionizing radiation / 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 / base-excision repair / establishment of integrated proviral latency 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 / : / Ku70 / Ku, C-terminal / Ku, C-terminal domain superfamily / Ku C terminal domain like / DNA ligase, ATP-dependent / DNA ligase, ATP-dependent, N-terminal / DNA ligase, ATP-dependent, N-terminal domain superfamily / DNA ligase N terminus / Ku80 / Ku70/Ku80 C-terminal arm / Ku70/Ku80 C-terminal arm / Ku70/Ku80, N-terminal alpha/beta / Ku70/Ku80 N-terminal alpha/beta domain / ATP-dependent DNA ligase AMP-binding site. / ATP-dependent DNA ligase signature 2. / DNA ligase, ATP-dependent, C-terminal / ATP dependent DNA ligase C terminal region / DNA ligase, ATP-dependent, conserved site / Ku70/Ku80 beta-barrel domain / Ku70 and Ku80 are 70kDa and 80kDa subunits of the Lupus Ku autoantigen / Ku70/Ku80 beta-barrel domain / ATP-dependent DNA ligase family profile. / 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 / Phosphatidylinositol 3- and 4-kinases signature 1. / breast cancer carboxy-terminal domain / 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. / BRCT domain / von Willebrand factor, type A / 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 / DNA repair protein Ku80 / 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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