- PDB-9f28: Crystal structure of the heterodimeric primase from pyrococcus ab... -
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基本情報
登録情報
データベース: PDB / ID: 9f28
タイトル
Crystal structure of the heterodimeric primase from pyrococcus abyssi (deletion of the PriL-CTD domain)
要素
DNA primase large subunit PriL
DNA primase small subunit PriS
キーワード
REPLICATION / DNA primase / PriS / PriL
機能・相同性
機能・相同性情報
primosome complex / DNA replication, synthesis of primer / DNA-directed RNA polymerase complex / DNA-directed RNA polymerase activity / 転移酵素; リンを含む基を移すもの; 核酸を移すもの / 4 iron, 4 sulfur cluster binding / metal ion binding 類似検索 - 分子機能
DNA primase large subunit PriL / DNA primase small subunit PriS / DNA primase, small subunit, eukaryotic/archaeal / DNA primase, small subunit / DNA primase small subunit / DNA primase large subunit, eukaryotic/archaeal / Eukaryotic and archaeal DNA primase, large subunit 類似検索 - ドメイン・相同性
FORMIC ACID / DNA primase large subunit PriL / DNA primase small subunit PriS 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2024 タイトル: Communication between DNA polymerases and Replication Protein A within the archaeal replisome. 著者: 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 ...著者: 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 / 要旨: 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.