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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-11185 | |||||||||
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Title | Cryo-EM structure of DNA-PKcs (State 2) | |||||||||
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![]() | Kinase / DNA-PKcs / NHEJ / DNA-repair / DNA-PK / DNA BINDING PROTEIN | |||||||||
Function / homology | ![]() 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 / regulation of hematopoietic stem cell differentiation / U3 snoRNA binding / T cell lineage commitment / negative regulation of cGAS/STING signaling pathway / double-strand break repair via alternative nonhomologous end joining / maturation of 5.8S rRNA / 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 / small-subunit processome / positive regulation of translation / protein-DNA complex / response to gamma radiation / Nonhomologous End-Joining (NHEJ) / peptidyl-threonine phosphorylation / protein destabilization / protein modification process / brain development / 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 / innate immune response / protein serine kinase activity / 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 | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.24 Å | |||||||||
![]() | Chaplin AK / Hardwick SW | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Dimers of DNA-PK create a stage for DNA double-strand break repair. Authors: Amanda K Chaplin / Steven W Hardwick / Shikang Liang / Antonia Kefala Stavridi / Ales Hnizda / Lee R Cooper / Taiana Maia De Oliveira / Dimitri Y Chirgadze / Tom L Blundell / ![]() Abstract: DNA double-strand breaks are the most dangerous type of DNA damage and, if not repaired correctly, can lead to cancer. In humans, Ku70/80 recognizes DNA broken ends and recruits the DNA-dependent ...DNA double-strand breaks are the most dangerous type of DNA damage and, if not repaired correctly, can lead to cancer. In humans, Ku70/80 recognizes DNA broken ends and recruits the DNA-dependent protein kinase catalytic subunit (DNA-PKcs) to form DNA-dependent protein kinase holoenzyme (DNA-PK) in the process of non-homologous end joining (NHEJ). We present a 2.8-Å-resolution cryo-EM structure of DNA-PKcs, allowing precise amino acid sequence registration in regions uninterpreted in previous 4.3-Å X-ray maps. We also report a cryo-EM structure of DNA-PK at 3.5-Å resolution and reveal a dimer mediated by the Ku80 C terminus. Central to dimer formation is a domain swap of the conserved C-terminal helix of Ku80. Our results suggest a new mechanism for NHEJ utilizing a DNA-PK dimer to bring broken DNA ends together. Furthermore, drug inhibition of NHEJ in combination with chemo- and radiotherapy has proved successful, making these models central to structure-based drug targeting efforts. #1: ![]() Title: Dimers of DNA-PK create a stage for DNA-double strand break repair Authors: Chaplin AK / Hardwick SW / Liang S / Stavridi AK / Hnizda A / Cooper LR / De Oliveira TM / Chirgadze DY / Blundell TL | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 286.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.3 KB 21.3 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 19.8 KB | Display | ![]() |
Images | ![]() | 49.5 KB | ||
Filedesc metadata | ![]() | 8.2 KB | ||
Others | ![]() ![]() ![]() | 36.8 MB 281.8 MB 281.8 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6zfpMC ![]() 6zh2C ![]() 6zh4C ![]() 6zh6C ![]() 6zh8C ![]() 6zhaC ![]() 6zheC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 0.652 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Resolve cryoEM density modified map at 2.81 angstrom resolution
File | emd_11185_additional_1.map | ||||||||||||
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Annotation | Resolve cryoEM density modified map at 2.81 angstrom resolution | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_11185_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_11185_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : DNA-PKcs
Entire | Name: DNA-PKcs |
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Components |
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-Supramolecule #1: DNA-PKcs
Supramolecule | Name: DNA-PKcs / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 470 KDa |
-Macromolecule #1: DNA-dependent protein kinase catalytic subunit,DNA-PKcs,DNA-PKcs
Macromolecule | Name: DNA-dependent protein kinase catalytic subunit,DNA-PKcs,DNA-PKcs type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 472.056281 KDa |
Recombinant expression | Organism: Insect cell expression vector pTIE1 (others) |
Sequence | String: 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(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) UniProtKB: DNA-dependent protein kinase catalytic subunit |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.6 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 53.95 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |