+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-10621 | |||||||||
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Title | CryoEM structure of human CMG bound to AND-1 (CMGA) | |||||||||
Map data | Human CMG helicase bound to AND-1 in the presence of ATPgammaS - final post processed 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 / nuclear replication fork / 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 / Assembly of the pre-replicative complex / helicase activity / DNA-templated DNA replication / Orc1 removal from chromatin / cellular response to xenobiotic stimulus / nucleosome assembly / mitotic cell cycle / single-stranded DNA binding / histone binding / DNA helicase / DNA replication / cell population proliferation / chromosome, telomeric region / DNA repair / 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) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.77 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_10621.map.gz | 285.9 MB | EMDB map data format | |
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Header (meta data) | emd-10621-v30.xml emd-10621.xml | 37.5 KB 37.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_10621_fsc.xml | 15.6 KB | Display | FSC data file |
Images | emd_10621.png | 122.6 KB | ||
Masks | emd_10621_msk_1.map | 303.3 MB | Mask map | |
Filedesc metadata | emd-10621.cif.gz | 10.7 KB | ||
Others | emd_10621_additional.map.gz emd_10621_half_map_1.map.gz emd_10621_half_map_2.map.gz | 3.6 MB 281.2 MB 281.2 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-10621 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10621 | HTTPS FTP |
-Validation report
Summary document | emd_10621_validation.pdf.gz | 1.2 MB | Display | EMDB validaton report |
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Full document | emd_10621_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | emd_10621_validation.xml.gz | 23.5 KB | Display | |
Data in CIF | emd_10621_validation.cif.gz | 30.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10621 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10621 | HTTPS FTP |
-Related structure data
Related structure data | 6xtyMC 6xtxC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | |
EM raw data | EMPIAR-10472 (Title: CryoEM structure of human CMG bound to AND-1 (CMGA) / Data size: 1.3 TB Data #1: Unaligned multiframe micrographs of human CMG bound to AND-1 (CMGA) [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_10621.map.gz / Format: CCP4 / Size: 303.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Human CMG helicase bound to AND-1 in the presence of ATPgammaS - final post processed map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 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_10621_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: Human CMG helicase bound to AND-1 in the...
File | emd_10621_additional.map | ||||||||||||
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Annotation | Human CMG helicase bound to AND-1 in the presence of ATPgammaS - mask used for refinement | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Human CMG helicase bound to AND-1 in the...
File | emd_10621_half_map_1.map | ||||||||||||
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Annotation | Human CMG helicase bound to AND-1 in the presence of ATPgammaS - refined half-map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Human CMG helicase bound to AND-1 in the...
File | emd_10621_half_map_2.map | ||||||||||||
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Annotation | Human CMG helicase bound to AND-1 in the presence of ATPgammaS - refined half-map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Complex of human CMG bound to AND1
+Supramolecule #1: Complex of human CMG bound to AND1
+Supramolecule #2: Human CMG helicase
+Supramolecule #3: AND1
+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: WD repeat and HMG-box DNA-binding protein 1
+Macromolecule #13: ZINC 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: FEI FALCON III (4k x 4k) / Detector mode: INTEGRATING / Average electron dose: 54.3 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 |