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- EMDB-60744: Cryo-EM structure of the complex of DNA, Ku70/80, and laXLF. -

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Basic information

Entry
Database: EMDB / ID: EMD-60744
TitleCryo-EM structure of the complex of DNA, Ku70/80, and laXLF.
Map data
Sample
  • Complex: The complex of DNA, Ku70/80, and laXLF
    • Protein or peptide: X-ray repair cross-complementing protein 5
    • Protein or peptide: X-ray repair cross-complementing protein 6
    • DNA: DNA (5'-D(P*CP*GP*CP*TP*GP*CP*CP*GP*AP*TP*TP*CP*GP*TP*CP*GP*AP*CP*CP*T)-3')
    • DNA: DNA (5'-D(P*AP*GP*GP*TP*CP*GP*AP*CP*GP*AP*AP*TP*CP*GP*GP*CP*AP*GP*CP*G)-3')
    • Protein or peptide: Peptide from Non-homologous end-joining factor 1
  • Ligand: INOSITOL HEXAKISPHOSPHATE
  • Ligand: (2S)-2-HYDROXYPROPANOIC ACID
KeywordsDNA repair / NHEJ / Complex / Lactylation / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex
Function / homology
Function and homology information


positive regulation of ligase activity / DNA ligase IV complex / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / cellular response to X-ray ...positive regulation of ligase activity / DNA ligase IV complex / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / cellular response to X-ray / nonhomologous end joining complex / immunoglobulin V(D)J recombination / regulation of smooth muscle cell proliferation / nuclear telomere cap complex / double-strand break repair via classical nonhomologous end joining / Cytosolic sensors of pathogen-associated DNA / IRF3-mediated induction of type I IFN / regulation of telomere maintenance / recombinational repair / U3 snoRNA binding / protein localization to chromosome, telomeric region / cellular hyperosmotic salinity response / cellular response to fatty acid / positive regulation of neurogenesis / response to ionizing radiation / telomeric DNA binding / 2-LTR circle formation / hematopoietic stem cell proliferation / site of DNA damage / Lyases; Carbon-oxygen lyases; Other carbon-oxygen lyases / T cell differentiation / 5'-deoxyribose-5-phosphate lyase activity / positive regulation of protein kinase activity / ATP-dependent activity, acting on DNA / hematopoietic stem cell differentiation / telomere maintenance via telomerase / DNA helicase activity / DNA polymerase binding / neurogenesis / telomere maintenance / activation of innate immune response / B cell differentiation / cyclin binding / cellular response to leukemia inhibitory factor / enzyme activator activity / central nervous system development / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / protein-DNA complex / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / double-strand break repair via nonhomologous end joining / fibrillar center / double-strand break repair / site of double-strand break / double-stranded DNA binding / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / ficolin-1-rich granule lumen / damaged DNA binding / chromosome, telomeric region / transcription cis-regulatory region binding / response to xenobiotic stimulus / ribonucleoprotein complex / innate immune response / negative regulation of DNA-templated transcription / ubiquitin protein ligase binding / DNA damage response / Neutrophil degranulation / protein-containing complex binding / positive regulation of DNA-templated transcription / nucleolus / positive regulation of transcription by RNA polymerase II / protein-containing complex / ATP hydrolysis activity / DNA binding / RNA binding / extracellular region / nucleoplasm / ATP binding / nucleus / membrane / plasma membrane / cytosol
Similarity search - Function
XLF, N-terminal / : / : / XLF N-terminal domain / XLF protein coiled-coil region / XRCC4-like, N-terminal domain superfamily / Ku70, bridge and pillars domain superfamily / : / Ku70 / Ku, C-terminal ...XLF, N-terminal / : / : / XLF N-terminal domain / XLF protein coiled-coil region / XRCC4-like, N-terminal domain superfamily / 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 beta-barrel domain / Ku70/Ku80 N-terminal alpha/beta 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 (vWF) type A domain / von Willebrand factor, type A / von Willebrand factor A-like domain superfamily
Similarity search - Domain/homology
X-ray repair cross-complementing protein 6 / X-ray repair cross-complementing protein 5 / Non-homologous end-joining factor 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.46 Å
AuthorsLiang S
Funding support Hong Kong, 1 items
OrganizationGrant numberCountry
Other private Hong Kong
CitationJournal: To Be Published
Title: Cryo-EM structure of the complex of DNA, Ku70/80, and laXLF.
Authors: Liang S
History
DepositionJul 9, 2024-
Header (metadata) releaseJul 9, 2025-
Map releaseJul 9, 2025-
UpdateJul 9, 2025-
Current statusJul 9, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_60744.png

Downloads & links

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Map

FileDownload / File: emd_60744.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.96 Å/pix.
x 240 pix.
= 229.368 Å		0.96 Å/pix.
x 240 pix.
= 229.368 Å		0.96 Å/pix.
x 240 pix.
= 229.368 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.9557 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.039
Minimum - Maximum-0.15245648 - 0.36021385
Average (Standard dev.)0.0007455809 (±0.013095364)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions240240240
Spacing240240240
CellA=B=C: 229.368 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_60744_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_60744_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : The complex of DNA, Ku70/80, and laXLF

EntireName: The complex of DNA, Ku70/80, and laXLF
Components
  • Complex: The complex of DNA, Ku70/80, and laXLF
    • Protein or peptide: X-ray repair cross-complementing protein 5
    • Protein or peptide: X-ray repair cross-complementing protein 6
    • DNA: DNA (5'-D(P*CP*GP*CP*TP*GP*CP*CP*GP*AP*TP*TP*CP*GP*TP*CP*GP*AP*CP*CP*T)-3')
    • DNA: DNA (5'-D(P*AP*GP*GP*TP*CP*GP*AP*CP*GP*AP*AP*TP*CP*GP*GP*CP*AP*GP*CP*G)-3')
    • Protein or peptide: Peptide from Non-homologous end-joining factor 1
  • Ligand: INOSITOL HEXAKISPHOSPHATE
  • Ligand: (2S)-2-HYDROXYPROPANOIC ACID

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Supramolecule #1: The complex of DNA, Ku70/80, and laXLF

SupramoleculeName: The complex of DNA, Ku70/80, and laXLF / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 168 KDa

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Macromolecule #1: X-ray repair cross-complementing protein 5

MacromoleculeName: X-ray repair cross-complementing protein 5 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
EC number: Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 82.812438 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MVRSGNKAAV VLCMDVGFTM SNSIPGIESP FEQAKKVITM FVQRQVFAEN KDEIALVLFG TDGTDNPLSG GDQYQNITVH RHLMLPDFD LLEDIESKIQ PGSQQADFLD ALIVSMDVIQ HETIGKKFEK RHIEIFTDLS SRFSKSQLDI IIHSLKKCDI S LQFFLPFS ...String:
MVRSGNKAAV VLCMDVGFTM SNSIPGIESP FEQAKKVITM FVQRQVFAEN KDEIALVLFG TDGTDNPLSG GDQYQNITVH RHLMLPDFD LLEDIESKIQ PGSQQADFLD ALIVSMDVIQ HETIGKKFEK RHIEIFTDLS SRFSKSQLDI IIHSLKKCDI S LQFFLPFS LGKEDGSGDR GDGPFRLGGH GPSFPLKGIT EQQKEGLEIV KMVMISLEGE DGLDEIYSFS ESLRKLCVFK KI ERHSIHW PCRLTIGSNL SIRIAAYKSI LQERVKKTWT VVDAKTLKKE DIQKETVYCL NDDDETEVLK EDIIQGFRYG SDI VPFSKV DEEQMKYKSE GKCFSVLGFC KSSQVQRRFF MGNQVLKVFA ARDDEAAAVA LSSLIHALDD LDMVAIVRYA YDKR ANPQV GVAFPHIKHN YECLVYVQLP FMEDLRQYMF SSLKNSKKYA PTEAQLNAVD ALIDSMSLAK KDEKTDTLED LFPTT KIPN PRFQRLFQCL LHRALHPREP LPPIQQHIWN MLNPPAEVTT KSQIPLSKIK TLFPLIEAKK KDQVTAQEIF QDNHED GPT AKKLKTEQGG AHFSVSSLAE GSVTSVGSVN PAENFRVLVK QKKASFEEAS NQLINHIEQF LDTNETPYFM KSIDCIR AF REEAIKFSEE QRFNNFLKAL QEKVEIKQLN HFWEIVVQDG ITLITKEEAS GSSVTAEEAK KFLAPKDKPS GDTAAVFE E GGDVDDLLDM I

UniProtKB: X-ray repair cross-complementing protein 5

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Macromolecule #2: X-ray repair cross-complementing protein 6

MacromoleculeName: X-ray repair cross-complementing protein 6 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
EC number: Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 69.945039 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSGWESYYKT EGDEEAEEEQ EENLEASGDY KYSGRDSLIF LVDASKAMFE SQSEDELTPF DMSIQCIQSV YISKIISSDR DLLAVVFYG TEKDKNSVNF KNIYVLQELD NPGAKRILEL DQFKGQQGQK RFQDMMGHGS DYSLSEVLWV CANLFSDVQF K MSHKRIML ...String:
MSGWESYYKT EGDEEAEEEQ EENLEASGDY KYSGRDSLIF LVDASKAMFE SQSEDELTPF DMSIQCIQSV YISKIISSDR DLLAVVFYG TEKDKNSVNF KNIYVLQELD NPGAKRILEL DQFKGQQGQK RFQDMMGHGS DYSLSEVLWV CANLFSDVQF K MSHKRIML FTNEDNPHGN DSAKASRART KAGDLRDTGI FLDLMHLKKP GGFDISLFYR DIISIAEDED LRVHFEESSK LE DLLRKVR AKETRKRALS RLKLKLNKDI VISVGIYNLV QKALKPPPIK LYRETNEPVK TKTRTFNTST GGLLLPSDTK RSQ IYGSRQ IILEKEETEE LKRFDDPGLM LMGFKPLVLL KKHHYLRPSL FVYPEESLVI GSSTLFSALL IKCLEKEVAA LCRY TPRRN IPPYFVALVP QEEELDDQKI QVTPPGFQLV FLPFADDKRK MPFTEKIMAT PEQVGKMKAI VEKLRFTYRS DSFEN PVLQ QHFRNLEALA LDLMEPEQAV DLTLPKVEAM NKRLGSLVDE FKELVYPPDY NPEGKVTKRK HDNEGSGSKR PKVEYS EEE LKTHISKGTL GKFTVPMLKE ACRAYGLKSG LKKQELLEAL TKHFQD

UniProtKB: X-ray repair cross-complementing protein 6

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Macromolecule #5: Peptide from Non-homologous end-joining factor 1

MacromoleculeName: Peptide from Non-homologous end-joining factor 1 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 1.536907 KDa
SequenceString:
SKVKRKKPRG LFS

UniProtKB: Non-homologous end-joining factor 1

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Macromolecule #3: DNA (5'-D(P*CP*GP*CP*TP*GP*CP*CP*GP*AP*TP*TP*CP*GP*TP*CP*GP*AP*CP...

MacromoleculeName: DNA (5'-D(P*CP*GP*CP*TP*GP*CP*CP*GP*AP*TP*TP*CP*GP*TP*CP*GP*AP*CP*CP*T)-3')
type: dna / ID: 3 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 6.969472 KDa
SequenceString:
(DC)(DG)(DC)(DT)(DG)(DC)(DC)(DG)(DA)(DT) (DT)(DC)(DG)(DT)(DC)(DG)(DA)(DC)(DC)(DT) (DC)(DG)(DC)

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Macromolecule #4: DNA (5'-D(P*AP*GP*GP*TP*CP*GP*AP*CP*GP*AP*AP*TP*CP*GP*GP*CP*AP*GP...

MacromoleculeName: DNA (5'-D(P*AP*GP*GP*TP*CP*GP*AP*CP*GP*AP*AP*TP*CP*GP*GP*CP*AP*GP*CP*G)-3')
type: dna / ID: 4 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.156611 KDa
SequenceString:
(DG)(DC)(DG)(DA)(DG)(DG)(DT)(DC)(DG)(DA) (DC)(DG)(DA)(DA)(DT)(DC)(DG)(DG)(DC)(DA) (DG)(DC)(DG)

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Macromolecule #6: INOSITOL HEXAKISPHOSPHATE

MacromoleculeName: INOSITOL HEXAKISPHOSPHATE / type: ligand / ID: 6 / Number of copies: 1 / Formula: IHP
Molecular weightTheoretical: 660.035 Da
Chemical component information

ChemComp-IHP:
INOSITOL HEXAKISPHOSPHATE

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Macromolecule #7: (2S)-2-HYDROXYPROPANOIC ACID

MacromoleculeName: (2S)-2-HYDROXYPROPANOIC ACID / type: ligand / ID: 7 / Number of copies: 1 / Formula: 2OP
Molecular weightTheoretical: 90.078 Da
Chemical component information

ChemComp-2OP:
(2S)-2-HYDROXYPROPANOIC ACID

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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

BufferpH: 7.6
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: TFS FALCON 4i (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionSoftware - Name: cryoSPARC / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.46 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 298238
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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