+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-10619 | |||||||||
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Title | CryoEM structure of human CMG bound to ATPgammaS and DNA | |||||||||
Map data | Human CMG helicase bound to DNA and ATP-gamma-S - final postprocessed map | |||||||||
Sample |
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Keywords | CMG / Helicase / ATPase / Replisome / REPLICATION | |||||||||
Function / homology | Function and homology information Switching of origins to a post-replicative state / Unwinding of DNA / DNA strand elongation involved in mitotic DNA replication / GINS complex / mitotic DNA replication preinitiation complex assembly / nuclear origin of replication recognition complex / mitotic DNA replication / alpha DNA polymerase:primase complex / CMG complex / DNA replication checkpoint signaling ...Switching of origins to a post-replicative state / Unwinding of DNA / DNA strand elongation involved in mitotic DNA replication / GINS complex / mitotic DNA replication preinitiation complex assembly / nuclear origin of replication recognition complex / mitotic DNA replication / alpha DNA polymerase:primase complex / CMG complex / DNA replication checkpoint signaling / DNA replication preinitiation complex / MCM complex / regulation of phosphorylation / double-strand break repair via break-induced replication / mitotic DNA replication initiation / regulation of DNA-templated DNA replication initiation / inner cell mass cell proliferation / DNA strand elongation involved in DNA replication / cochlea development / DNA unwinding involved in DNA replication / G1/S-Specific Transcription / DNA replication origin binding / DNA replication initiation / Activation of the pre-replicative complex / cellular response to interleukin-4 / Activation of ATR in response to replication stress / DNA helicase activity / ciliary basal body / helicase activity / Assembly of the pre-replicative complex / Orc1 removal from chromatin / cellular response to xenobiotic stimulus / nucleosome assembly / single-stranded DNA binding / histone binding / DNA helicase / DNA replication / cell population proliferation / chromosome, telomeric region / centrosome / DNA damage response / chromatin binding / chromatin / apoptotic process / perinuclear region of cytoplasm / enzyme binding / ATP hydrolysis activity / DNA binding / nucleoplasm / ATP binding / identical protein binding / membrane / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / synthetic construct (others) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.29 Å | |||||||||
Authors | Rzechorzek NJ / Pellegrini L | |||||||||
Funding support | United Kingdom, 1 items
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Citation | Journal: Nucleic Acids Res / Year: 2020 Title: CryoEM structures of human CMG-ATPγS-DNA and CMG-AND-1 complexes. Authors: Neil J Rzechorzek / Steven W Hardwick / Vincentius A Jatikusumo / Dimitri Y Chirgadze / Luca Pellegrini / Abstract: DNA unwinding in eukaryotic replication is performed by the Cdc45-MCM-GINS (CMG) helicase. Although the CMG architecture has been elucidated, its mechanism of DNA unwinding and replisome interactions ...DNA unwinding in eukaryotic replication is performed by the Cdc45-MCM-GINS (CMG) helicase. Although the CMG architecture has been elucidated, its mechanism of DNA unwinding and replisome interactions remain poorly understood. Here we report the cryoEM structure at 3.3 Å of human CMG bound to fork DNA and the ATP-analogue ATPγS. Eleven nucleotides of single-stranded (ss) DNA are bound within the C-tier of MCM2-7 AAA+ ATPase domains. All MCM subunits contact DNA, from MCM2 at the 5'-end to MCM5 at the 3'-end of the DNA spiral, but only MCM6, 4, 7 and 3 make a full set of interactions. DNA binding correlates with nucleotide occupancy: five MCM subunits are bound to either ATPγS or ADP, whereas the apo MCM2-5 interface remains open. We further report the cryoEM structure of human CMG bound to the replisome hub AND-1 (CMGA). The AND-1 trimer uses one β-propeller domain of its trimerisation region to dock onto the side of the helicase assembly formed by Cdc45 and GINS. In the resulting CMGA architecture, the AND-1 trimer is closely positioned to the fork DNA while its CIP (Ctf4-interacting peptide)-binding helical domains remain available to recruit partner proteins. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_10619.map.gz | 166.2 MB | EMDB map data format | |
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Header (meta data) | emd-10619-v30.xml emd-10619.xml | 34.8 KB 34.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_10619_fsc.xml | 12.7 KB | Display | FSC data file |
Images | emd_10619.png | 216.5 KB | ||
Masks | emd_10619_msk_1.map | 178 MB | Mask map | |
Filedesc metadata | emd-10619.cif.gz | 10.4 KB | ||
Others | emd_10619_half_map_1.map.gz emd_10619_half_map_2.map.gz | 140.8 MB 140.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-10619 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10619 | HTTPS FTP |
-Validation report
Summary document | emd_10619_validation.pdf.gz | 1 MB | Display | EMDB validaton report |
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Full document | emd_10619_full_validation.pdf.gz | 1 MB | Display | |
Data in XML | emd_10619_validation.xml.gz | 19.9 KB | Display | |
Data in CIF | emd_10619_validation.cif.gz | 26.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10619 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10619 | HTTPS FTP |
-Related structure data
Related structure data | 6xtxMC 6xtyC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10471 (Title: CryoEM structure of human CMG bound to ATPgammaS and DNA Data size: 7.7 TB Data #1: Unaligned multiframe micrographs of human CMG bound ATPgammaS and DNA [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_10619.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Human CMG helicase bound to DNA and ATP-gamma-S - final postprocessed map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.07 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_10619_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: Human CMG helicase bound to DNA and ATP-gamma-S - refined half-map 1
File | emd_10619_half_map_1.map | ||||||||||||
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Annotation | Human CMG helicase bound to DNA and ATP-gamma-S - refined half-map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Human CMG helicase bound to DNA and ATP-gamma-S - refined half-map 2
File | emd_10619_half_map_2.map | ||||||||||||
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Annotation | Human CMG helicase bound to DNA and ATP-gamma-S - refined half-map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Complex of human CMG bound to DNA
+Supramolecule #1: Complex of human CMG bound to DNA
+Supramolecule #2: Human CMG helicase
+Supramolecule #3: DNA
+Macromolecule #1: DNA replication licensing factor MCM2
+Macromolecule #2: DNA replication licensing factor MCM3
+Macromolecule #3: DNA replication licensing factor MCM4
+Macromolecule #4: DNA replication licensing factor MCM5
+Macromolecule #5: DNA replication licensing factor MCM6
+Macromolecule #6: DNA replication licensing factor MCM7
+Macromolecule #7: DNA replication complex GINS protein PSF1
+Macromolecule #8: DNA replication complex GINS protein PSF2
+Macromolecule #9: DNA replication complex GINS protein PSF3
+Macromolecule #10: DNA replication complex GINS protein SLD5
+Macromolecule #11: Cell division control protein 45 homolog
+Macromolecule #12: DNA (5'-D(P*TP*TP*TP*TP*TP*TP*TP*TP*TP*TP*T)-3')
+Macromolecule #13: ZINC ION
+Macromolecule #14: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #15: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
+Macromolecule #16: MAGNESIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 57.6 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |