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- EMDB-28731: Dimeric complex of DNA-PKcs -

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Basic information

Entry
Database: EMDB / ID: EMD-28731
TitleDimeric complex of DNA-PKcs
Map datadimer
Sample
  • Complex: dimer of DNA-PKcs
    • Protein or peptide: DNA-dependent protein kinase catalytic subunit
    • Protein or peptide: unknown region of DNA-PKcs
KeywordsDimer / Kinase / Complex / NHEJ / DNA BINDING PROTEIN
Function / homology
Function and homology information


positive regulation of platelet formation / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / immature B cell differentiation / DNA-dependent protein kinase-DNA ligase 4 complex ...positive regulation of platelet formation / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / immature B cell differentiation / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / nonhomologous end joining complex / regulation of smooth muscle cell proliferation / Cytosolic sensors of pathogen-associated DNA / regulation of epithelial cell proliferation / IRF3-mediated induction of type I IFN / telomere capping / double-strand break repair via alternative nonhomologous end joining / regulation of hematopoietic stem cell differentiation / U3 snoRNA binding / maturation of 5.8S rRNA / T cell lineage commitment / negative regulation of cGAS/STING signaling pathway / B cell lineage commitment / positive regulation of double-strand break repair via nonhomologous end joining / ectopic germ cell programmed cell death / somitogenesis / mitotic G1 DNA damage checkpoint signaling / activation of innate immune response / telomere maintenance / positive regulation of erythrocyte differentiation / negative regulation of protein phosphorylation / positive regulation of translation / small-subunit processome / protein-DNA complex / response to gamma radiation / Nonhomologous End-Joining (NHEJ) / peptidyl-threonine phosphorylation / protein destabilization / brain development / protein modification process / regulation of circadian rhythm / double-strand break repair via nonhomologous end joining / cellular response to insulin stimulus / intrinsic apoptotic signaling pathway in response to DNA damage / double-strand break repair / rhythmic process / E3 ubiquitin ligases ubiquitinate target proteins / heart development / T cell differentiation in thymus / double-stranded DNA binding / peptidyl-serine phosphorylation / RNA polymerase II-specific DNA-binding transcription factor binding / transcription regulator complex / chromosome, telomeric region / non-specific serine/threonine protein kinase / protein kinase activity / positive regulation of apoptotic process / protein domain specific binding / protein phosphorylation / protein serine kinase activity / innate immune response / protein serine/threonine kinase activity / DNA damage response / chromatin / nucleolus / negative regulation of apoptotic process / enzyme binding / positive regulation of transcription by RNA polymerase II / protein-containing complex / RNA binding / nucleoplasm / ATP binding / membrane / nucleus / cytosol
Similarity search - Function
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 ...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 / PIK-related kinase, FAT / FAT domain / FATC domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / 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 / Armadillo-like helical / Armadillo-type fold / Protein kinase-like domain superfamily
Similarity search - Domain/homology
DNA-dependent protein kinase catalytic subunit
Similarity search - Component
Biological speciesHomo sapiens (human) / human (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.67 Å
AuthorsChen S / He Y
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM135651 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)U24GM129547 United States
CitationJournal: Sci Adv / Year: 2023
Title: Cryo-EM visualization of DNA-PKcs structural intermediates in NHEJ.
Authors: Siyu Chen / Alex Vogt / Linda Lee / Tasmin Naila / Ryan McKeown / Alan E Tomkinson / Susan P Lees-Miller / Yuan He /
Abstract: DNA double-strand breaks (DSBs), one of the most cytotoxic forms of DNA damage, can be repaired by the tightly regulated nonhomologous end joining (NHEJ) machinery (Stinson and Loparo and Zhao ). ...DNA double-strand breaks (DSBs), one of the most cytotoxic forms of DNA damage, can be repaired by the tightly regulated nonhomologous end joining (NHEJ) machinery (Stinson and Loparo and Zhao ). Core NHEJ factors form an initial long-range (LR) synaptic complex that transitions into a DNA-PKcs (DNA-dependent protein kinase, catalytic subunit)-free, short-range state to align the DSB ends (Chen ). Using single-particle cryo-electron microscopy, we have visualized three additional key NHEJ complexes representing different transition states, with DNA-PKcs adopting distinct dimeric conformations within each of them. Upon DNA-PKcs autophosphorylation, the LR complex undergoes a substantial conformational change, with both Ku and DNA-PKcs rotating outward to promote DNA break exposure and DNA-PKcs dissociation. We also captured a dimeric state of catalytically inactive DNA-PKcs, which resembles structures of other PIKK (Phosphatidylinositol 3-kinase-related kinase) family kinases, revealing a model of the full regulatory cycle of DNA-PKcs during NHEJ.
History
DepositionOct 31, 2022-
Header (metadata) releaseJun 14, 2023-
Map releaseJun 14, 2023-
UpdateJun 14, 2023-
Current statusJun 14, 2023Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_28731.png

Downloads & links

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Map

FileDownload / File: emd_28731.map.gz / Format: CCP4 / Size: 307.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationdimer
Voxel sizeX=Y=Z: 0.8256 Å
Density
Contour LevelBy AUTHOR: 0.006
Minimum - Maximum-0.017187595 - 0.031447124
Average (Standard dev.)0.00013255623 (±0.0016208858)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions432432432
Spacing432432432
CellA=B=C: 356.6592 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: dimer half1

Fileemd_28731_half_map_1.map
Annotationdimer_half1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: dimer half2

Fileemd_28731_half_map_2.map
Annotationdimer_half2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : dimer of DNA-PKcs

EntireName: dimer of DNA-PKcs
Components
  • Complex: dimer of DNA-PKcs
    • Protein or peptide: DNA-dependent protein kinase catalytic subunit
    • Protein or peptide: unknown region of DNA-PKcs

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Supramolecule #1: dimer of DNA-PKcs

SupramoleculeName: dimer of DNA-PKcs / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #2, #1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 940 KDa

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Macromolecule #1: unknown region of DNA-PKcs

MacromoleculeName: unknown region of DNA-PKcs / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 1.720111 KDa
SequenceString:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)

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Macromolecule #2: DNA-dependent protein kinase catalytic subunit

MacromoleculeName: DNA-dependent protein kinase catalytic subunit / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: human (human)
Molecular weightTheoretical: 469.673219 KDa
SequenceString: MAGSGAGVRC SLLRLQETLS AADRCGAALA GHQLIRGLGQ ECVLSSSPAV LALQTSLVFS RDFGLLVFVR KSLNSIEFRE CREEILKFL CIFLEKMGQK IAPYSVEIKN TCTSVYTKDR AAKCKIPALD LLIKLLQTFR SSRLMDEFKI GELFSKFYGE L ALKKKIPD ...String:
MAGSGAGVRC SLLRLQETLS AADRCGAALA GHQLIRGLGQ ECVLSSSPAV LALQTSLVFS RDFGLLVFVR KSLNSIEFRE CREEILKFL CIFLEKMGQK IAPYSVEIKN TCTSVYTKDR AAKCKIPALD LLIKLLQTFR SSRLMDEFKI GELFSKFYGE L ALKKKIPD TVLEKVYELL GLLGEVHPSE MINNAENLFR AFLGELKTQM TSAVREPKLP VLAGCLKGLS SLLCNFTKSM EE DPQTSRE IFNFVLKAIR PQIDLKRYAV PSAGLRLFAL HASQFSTCLL DNYVSLFEVL LKWCAHTNVE LKKAALSALE SFL KQVSNM VAKNAEMHKN KLQYFMEQFY GIIRNVDSNN KELSIAIRGY GLFAGPCKVI NAKDVDFMYV ELIQRCKQMF LTQT DTGDD RVYQMPSFLQ SVASVLLYLD TVPEVYTPVL EHLVVMQIDS FPQYSPKMQL VCCRAIVKVF LALAAKGPVL RNCIS TVVH QGLIRICSKP VVLPKGPESE SEDHRASGEV RTGKWKVPTY KDYVDLFRHL LSSDQMMDSI LADEAFFSVN SSSESL NHL LYDEFVKSVL KIVEKLDLTL EIQTVGEQEN GDEAPGVWMI PTSDPAANLH PAKPKDFSAF INLVEFCREI LPEKQAE FF EPWVYSFSYE LILQSTRLPL ISGFYKLLSI TVRNAKKIKY FEGVSPKSLK HSPEDPEKYS CFALFVKFGK EVAVKMKQ Y KDELLASCLT FLLSLPHNII ELDVRAYVPA LQMAFKLGLS YTPLAEVGLN ALEEWSIYID RHVMQPYYKD ILPCLDGYL KTSALSDETK NNWEVSALSR AAQKGFNKVV LKHLKKTKNL SSNEAISLEE IRIRVVQMLG SLGGQINKNL LTVTSSDEMM KSYVAWDRE KRLSFAVPFR EMKPVIFLDV FLPRVTELAL TASDRQTKVA ACELLHSMVM FMLGKATQMP EGGQGAPPMY Q LYKRTFPV LLRLACDVDQ VTRQLYEPLV MQLIHWFTNN KKFESQDTVA LLEAILDGIV DPVDSTLRDF CGRCIREFLK WS IKQITPQ QQEKSPVNTK SLFKRLYSLA LHPNAFKRLG ASLAFNNIYR EFREEESLVE QFVFEALVIY MESLALAHAD EKS LGTIQQ CCDAIDHLCR IIEKKHVSLN KAKKRRLPRG FPPSASLCLL DLVKWLLAHC GRPQTECRHK SIELFYKFVP LLPG NRSPN LWLKDVLKEE GVSFLINTFE GGGCGQPSGI LAQPTLLYLR GPFSLQATLC WLDLLLAALE CYNTFIGERT VGALQ VLGT EAQSSLLKAV AFFLESIAMH DIIAAEKCFG TGAAGNRTSP QEGERYNYSK CTVVVRIMEF TTTLLNTSPE GWKLLK KDL CNTHLMRVLV QTLCEPASIG FNIGDVQVMA HLPDVCVNLM KALKMSPYKD ILETHLREKI TAQSIEELCA VNLYGPD AQ VDRSRLAAVV SACKQLHRAG LLHNILPSQS TDLHHSVGTE LLSLVYKGIA PGDERQCLPS LDLSCKQLAS GLLELAFA F GGLCERLVSL LLNPAVLSTA SLGSSQGSVI HFSHGEYFYS LFSETINTEL LKNLDLAVLE LMQSSVDNTK MVSAVLNGM LDQSFRERAN QKHQGLKLAT TILQHWKKCD SWWAKDSPLE TKMAVLALLA KILQIDSSVS FNTSHGSFPE VFTTYISLLA DTKLDLHLK GQAVTLLPFF TSLTGGSLEE LRRVLEQLIV AHFPMQSREF PPGTPRFNNY VDCMKKFLDA LELSQSPMLL E LMTEVLCR EQQHVMEELF QSSFRRIARR GSCVTQVGLL ESVYEMFRKD DPRLSFTRQS FVDRSLLTLL WHCSLDALRE FF STIVVDA IDVLKSRFTK LNESTFDTQI TKKMGYYKIL DVMYSRLPKD DVHAKESKIN QVFHGSCITE GNELTKTLIK LCY DAFTEN MAGENQLLER RRLYHCAAYN CAISVICCVF NELKFYQGFL FSEKPEKNLL IFENLIDLKR RYNFPVEVEV PMER KKKYI EIRKEAREAA NGDSDGPSYM SSLSYLADST LSEEMSQFDF STGVQSYSYS SQDPRPATGR FRRREQRDPT VHDDV LELE MDELNRHECM APLTALVKHM HRSLGPPQGE EDSVPRDLPS WMKFLHGKLG NPIVPLNIRL FLAKLVINTE EVFRPY AKH WLSPLLQLAA SENNGGEGIH YMVVEIVATI LSWTGLATPT GVPKDEVLAN RLLNFLMKHV FHPKRAVFRH NLEIIKT LV ECWKDCLSIP YRLIFEKFSG KDPNSKDNSV GIQLLGIVMA NDLPPYDPQC GIQSSEYFQA LVNNMSFVRY KEVYAAAA E VLGLILRYVM ERKNILEESL CELVAKQLKQ HQNTMEDKFI VCLNKVTKSF PPLADRFMNA VFFLLPKFHG VLKTLCLEV VLCRVEGMTE LYFQLKSKDF VQVMRHRDDE RQKVCLDIIY KMMPKLKPVE LRELLNPVVE FVSHPSTTCR EQMYNILMWI HDNYRDPES ETDNDSQEIF KLAKDVLIQG LIDENPGLQL IIRNFWSHET RLPSNTLDRL LALNSLYSPK IEVHFLSLAT N FLLEMTSM SPDYPNPMFE HPLSECEFQE YTIDSDWRFR STVLTPMFVE TQASQGTLQT RTQEGSLSAR WPVAGQIRAT QQ QHDFTLT QTADGRSSFD WLTGSSTDPL VDHTSPSSDS LLFAHKRSER LQRAPLKSVG PDFGKKRLGL PGDEVDNKVK GAA GRTDLL RLRRRFMRDQ EKLSLMYARK GVAEQKREKE IKSELKMKQD AQVVLYRSYR HGDLPDIQIK HSSLITPLQA VAQR DPIIA KQLFSSLFSG ILKEMDKFKT LSEKNNITQK LLQDFNRFLN TTFSFFPPFV SCIQDISCQH AALLSLDPAA VSAGC LASL QQPVGIRLLE EALLRLLPAE LPAKRVRGKA RLPPDVLRWV ELAKLYRSIG EYDVLRGIFT SEIGTKQITQ SALLAE ARS DYSEAAKQYD EALNKQDWVD GEPTEAEKDF WELASLDCYN HLAEWKSLEY CSTASIDSEN PPDLNKIWSE PFYQETY LP YMIRSKLKLL LQGEADQSLL TFIDKAMHGE LQKAILELHY SQELSLLYLL QDDVDRAKYY IQNGIQSFMQ NYSSIDVL L HQSRLTKLQS VQALTEIQEF ISFISKQGNL SSQVPLKRLL NTWTNRYPDA KMDPMNIWDD IITNRCFFLS KIEEKLTPL PEDNSMNVDQ DGDPSDRMEV QEQEEDISSL IRSCKFSMKM KMIDSARKQN NFSLAMKLLK ELHKESKTRD DWLVSWVQSY CRLSHCRSR SQGCSEQVLT VLKTVSLLDE NNVSSYLSKN ILAFRDQNIL LGTTYRIIAN ALSSEPACLA EIEEDKARRI L ELSGSSSE DSEKVIAGLY QRAFQHLSEA VQAAEEEAQP PSWSCGPAAG VIDAYMTLAD FCDQQLRKEE ENASVIDSAE LQ AYPALVV EKMLKALKLN SNEARLKFPR LLQIIERYPE ETLSLMTKEI SSVPCWQFIS WISHMVALLD KDQAVAVQHS VEE ITDNYP QAIVYPFIIS SESYSFKDTS TGHKNKEFVA RIKSKLDQGG VIQDFINALD QLSNPELLFK DWSNDVRAEL AKTP VNKKN IEKMYERMYA ALGDPKAPGL GAFRRKFIQT FGKEFDKHFG KGGSKLLRMK LSDFNDITNM LLLKMNKDSK PPGNL KECS PWMSDFKVEF LRNELEIPGQ YDGRGKPLPE YHVRIAGFDE RVTVMASLRR PKRIIIRGHD EREHPFLVKG GEDLRQ DQR VEQLFQVMNG ILAQDSACSQ RALQLRTYSV VPMTSRLGLI EWLENTVTLK DLLLNTMSQE EKAAYLSDPR APPCEYK DW LTKMSGKHDV GAYMLMYKGA NRTETVTSFR KRESKVPADL LKRAFVRMST SPEAFLALRS HFASSHALIC ISHWILGI G DRHLNNFMVA METGGVIGID FGHAFGSATQ FLPVPELMPF RLTRQFINLM LPMKETGLMY SIMVHALRAF RSDPGLLTN TMDVFVKEPS FDWKNFEQKM LKKGGSWIQE INVAEKNWYP RQKICYAKRK LAGANPAVIT CDELLLGHEK APAFRDYVAV ARGSKDHNI RAQEPESGLS EETQVKCLMD QATDPNILGR TWEGWEPWM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration1.3 mg/mL
BufferpH: 7.4
GridModel: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Support film - Material: GRAPHENE OXIDE / Support film - topology: CONTINUOUS / Support film - Film thickness: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 10 sec. / Pretreatment - Atmosphere: AIR
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 302 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Calibrated defocus max: 4.0 µm / Calibrated defocus min: 2.0 µm / Calibrated magnification: 105000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.0 mm / Nominal defocus max: 4.0 µm / Nominal defocus min: 2.0 µm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
TemperatureMin: 70.0 K / Max: 70.0 K
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 1 / Number real images: 13132 / Average exposure time: 4.0 sec. / Average electron dose: 65.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1587734
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

7lt3

Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1.3)
Final 3D classificationNumber classes: 6 / Software - Name: RELION (ver. 3.1.3)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1.3)
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C2 (2 fold cyclic) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 5.67 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.1.3) / Number images used: 64775
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: FLEXIBLE FIT / Target criteria: CC
Output model

PDB-8ez9:
Dimeric complex of DNA-PKcs

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