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- EMDB-50145: Pyrococcus abyssi PolD-Rpa2 winged helix domain complex class 2 D... -
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Open data
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Basic information
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Title | Pyrococcus abyssi PolD-Rpa2 winged helix domain complex class 2 DP1 subunit local refinement | |||||||||
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![]() | DNA Polymerase / Archaea / replication / RPA | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
![]() | Martinez-Carranza M / Sauguet L | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Communication between DNA polymerases and Replication Protein A within the archaeal replisome. Authors: Markel Martínez-Carranza / Léa Vialle / Clément Madru / Florence Cordier / Ayten Dizkirici Tekpinar / Ahmed Haouz / Pierre Legrand / Rémy A Le Meur / Patrick England / Rémi Dulermo / J ...Authors: Markel Martínez-Carranza / Léa Vialle / Clément Madru / Florence Cordier / Ayten Dizkirici Tekpinar / Ahmed Haouz / Pierre Legrand / Rémy A Le Meur / Patrick England / Rémi Dulermo / J Iñaki Guijarro / Ghislaine Henneke / Ludovic Sauguet / ![]() ![]() Abstract: Replication Protein A (RPA) plays a pivotal role in DNA replication by coating and protecting exposed single-stranded DNA, and acting as a molecular hub that recruits additional replication factors. ...Replication Protein A (RPA) plays a pivotal role in DNA replication by coating and protecting exposed single-stranded DNA, and acting as a molecular hub that recruits additional replication factors. We demonstrate that archaeal RPA hosts a winged-helix domain (WH) that interacts with two key actors of the replisome: the DNA primase (PriSL) and the replicative DNA polymerase (PolD). Using an integrative structural biology approach, combining nuclear magnetic resonance, X-ray crystallography and cryo-electron microscopy, we unveil how RPA interacts with PriSL and PolD through two distinct surfaces of the WH domain: an evolutionarily conserved interface and a novel binding site. Finally, RPA is shown to stimulate the activity of PriSL in a WH-dependent manner. This study provides a molecular understanding of the WH-mediated regulatory activity in central replication factors such as RPA, which regulate genome maintenance in Archaea and Eukaryotes. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 154.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 14.3 KB 14.3 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.6 KB | Display | ![]() |
Images | ![]() | 59.8 KB | ||
Masks | ![]() | 163.6 MB | ![]() | |
Filedesc metadata | ![]() | 5.1 KB | ||
Others | ![]() ![]() | 151.6 MB 151.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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Links
EMDB pages | ![]() ![]() |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.96 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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Density Histograms |
-Half map: #1
File | emd_50145_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_50145_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : PolD-Rpa2 winged-helix domain complex from Pyrococcus abyssi
Entire | Name: PolD-Rpa2 winged-helix domain complex from Pyrococcus abyssi |
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Components |
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-Supramolecule #1: PolD-Rpa2 winged-helix domain complex from Pyrococcus abyssi
Supramolecule | Name: PolD-Rpa2 winged-helix domain complex from Pyrococcus abyssi type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 230 KDa |
-Macromolecule #1: PolD DP1 subunit
Macromolecule | Name: PolD DP1 subunit / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGKHHHHSGH HHTGHHHHSG SHHHTSSSAS TGENLYFQGT GDGSDELVKA LERAGYLLTP SAYYLLVDHF KEGKFSLVEL VKFAKSKGVF IIDGDLAYEF LQFLGLGVPQ EIKESYISTG EEAEKTVESQ ETRASELEEG GVSQVSSGEL QELKEESPEI STTEEEIGGL ...String: MGKHHHHSGH HHTGHHHHSG SHHHTSSSAS TGENLYFQGT GDGSDELVKA LERAGYLLTP SAYYLLVDHF KEGKFSLVEL VKFAKSKGVF IIDGDLAYEF LQFLGLGVPQ EIKESYISTG EEAEKTVESQ ETRASELEEG GVSQVSSGEL QELKEESPEI STTEEEIGGL ELVQSSISTG SEVEYNNGEN GESVVVLDKY GYPILYAPEE IGEEKEYSKY EDVVIEWNPS VTPVQIEKNY EVKFDVRQVK LRPPKVKNGS GKEGEIIVEA YASLFKSRLS KLKRILRENP EISNVVDIGK LNYVSGDEEV TIIGLVNSKR ETNRGLIFEV EDKTGIVKVF LPKDSEDYRE AFKVLPDAVV AFKGFYSKKG IFFANKFYLP DVPLYRKQKP PLEEKVYAIL ISDIHVGSRE FCEKAFLKFL EWLNGHVESK EEEEIVSRVK YLIIAGDVVD GIGIYPGQYS DLVIPDIFDQ YEALANLLAN VPEHITMFIG PGNADAARPA IPQPEFYKEY AKPIYKLKNA IIISNPAVIR LHGRDFLIAH GRGIEDVVSF VPGLTHHKPG LPMVELLKMR HLAPTFGGKV PIAPDPEDLL VIEEVPDLVQ MGHVHVYDAV VYRGVQLVNS ATWQAQTEFQ KMVNIVPTPA KVPVVDVESA RVVKVLDFSG WC |
-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: 8 |
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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: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.6 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |