FN Archimer Export Format PT J TI DNA-binding mechanism and evolution of replication protein A BT AF Madru, Clément Martínez-Carranza, Markel Laurent, Sebastien Alberti, Alessandra C. Chevreuil, Maelenn Raynal, Bertrand Haouz, Ahmed Le Meur, Rémy A. Delarue, Marc Henneke, Ghislaine Flament, Didier Krupovic, Mart Legrand, Pierre Sauguet, Ludovic AS 1:1;2:1;3:2;4:1;5:3;6:3;7:4;8:5;9:1;10:2;11:2;12:6;13:1,7;14:1; FF 1:;2:;3:PDG-REM-BEEP-LMEE;4:;5:;6:;7:;8:;9:;10:PDG-REM-BEEP-LMEE;11:PDG-REM-BEEP-LMEE;12:;13:;14:; C1 Architecture and Dynamics of Biological Macromolecules, Institut Pasteur, Université Paris Cité, CNRS, UMR 3528, Paris, France Univ Brest, Ifremer, CNRS, Biologie et Ecologie des Ecoystèmes marins profonds (BEEP), F-29280, Plouzané, France Molecular Biophysics Platform, C2RT, Institut Pasteur, Université Paris Cité, CNRS, UMR 3528, Paris, France Crystallography Platform, C2RT, Institut Pasteur, Université Paris Cité, CNRS, UMR 3528, Paris, France Biological NMR Platform & HDX, C2RT, Institut Pasteur, Université Paris Cité, CNRS, UMR 3528, Paris, France Archaeal Virology Unit, Institut Pasteur, Université Paris Cité, CNRS, UMR 6047, Paris, France Synchrotron SOLEIL, HelioBio group, L’Orme des Merisiers, 91190, Saint-Aubin, France C2 INST PASTEUR, FRANCE IFREMER, FRANCE INST PASTEUR, FRANCE INST PASTEUR, FRANCE INST PASTEUR, FRANCE INST PASTEUR, FRANCE SYNCHROTRON SOLEIL, FRANCE SI BREST SE PDG-REM-BEEP-LMEE UM BEEP-LM2E IN WOS Ifremer UMR DOAJ copubli-france IF 16.6 TC 4 UR https://archimer.ifremer.fr/doc/00834/94613/101996.pdf https://archimer.ifremer.fr/doc/00834/94613/101997.pdf https://archimer.ifremer.fr/doc/00834/94613/101998.pdf https://archimer.ifremer.fr/doc/00834/94613/101999.pdf https://archimer.ifremer.fr/doc/00834/94613/102000.mp4 https://archimer.ifremer.fr/doc/00834/94613/102001.mp4 https://archimer.ifremer.fr/doc/00834/94613/102002.pdf https://archimer.ifremer.fr/doc/00834/94613/102003.xlsx LA English DT Article AB Replication Protein A (RPA) is a heterotrimeric single stranded DNA-binding protein with essential roles in DNA replication, recombination and repair. Little is known about the structure of RPA in Archaea, the third domain of life. By using an integrative structural, biochemical and biophysical approach, we extensively characterize RPA from Pyrococcus abyssi in the presence and absence of DNA. The obtained X-ray and cryo-EM structures reveal that the trimerization core and interactions promoting RPA clustering on ssDNA are shared between archaea and eukaryotes. However, we also identified a helical domain named AROD (Acidic Rpa1 OB-binding Domain), and showed that, in Archaea, RPA forms an unanticipated tetrameric supercomplex in the absence of DNA. The four RPA molecules clustered within the tetramer could efficiently coat and protect stretches of ssDNA created by the advancing replisome. Finally, our results provide insights into the evolution of this primordial replication factor in eukaryotes. PY 2023 PD APR SO Nature Communications SN 2041-1723 PU Springer Science and Business Media LLC VL 14 IS 1 UT 000984264200007 DI 10.1038/s41467-023-38048-w ID 94613 ER EF