- PDB-6t7y: Structure of PCNA bound to cPIP motif of DP2 from P. abyssi -
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基本情報
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データベース: PDB / ID: 6t7y
タイトル
Structure of PCNA bound to cPIP motif of DP2 from P. abyssi
要素
DNA polymerase sliding clamp
cPIP motif from the DP2 large subunit of PolD
キーワード
REPLICATION / PCNA / DP2 / PolD / PIP-box
機能・相同性
機能・相同性情報
exodeoxyribonuclease I / intein-mediated protein splicing / single-stranded DNA 3'-5' DNA exonuclease activity / DNA catabolic process / DNA polymerase processivity factor activity / leading strand elongation / regulation of DNA replication / DNA-templated DNA replication / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA binding 類似検索 - 分子機能
DNA polymerase II large subunit DP2 / DNA polymerase II large subunit DP2, N-terminal / : / : / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II large subunit DP2, central domain / DNA polymerase II large subunit DP2, catalytic domain / Intein splicing domain / Box / Proliferating Cell Nuclear Antigen ...DNA polymerase II large subunit DP2 / DNA polymerase II large subunit DP2, N-terminal / : / : / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II large subunit DP2, central domain / DNA polymerase II large subunit DP2, catalytic domain / Intein splicing domain / Box / Proliferating Cell Nuclear Antigen / Proliferating Cell Nuclear Antigen - #10 / Intein C-terminal splicing region / Intein C-terminal splicing motif profile. / Intein N-terminal splicing region / Intein N-terminal splicing motif profile. / Hint domain N-terminal / Hint (Hedgehog/Intein) domain N-terminal region / Hint domain superfamily / Proliferating cell nuclear antigen, PCNA, conserved site / Proliferating cell nuclear antigen signature 1. / Proliferating cell nuclear antigen, PCNA / Proliferating cell nuclear antigen, PCNA, N-terminal / Proliferating cell nuclear antigen, PCNA, C-terminal / Proliferating cell nuclear antigen, N-terminal domain / Proliferating cell nuclear antigen, C-terminal domain / : / Alpha Beta 類似検索 - ドメイン・相同性
DNA polymerase sliding clamp / DNA polymerase II large subunit 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2020 タイトル: Structural basis for the increased processivity of D-family DNA polymerases in complex with PCNA. 著者: Clément Madru / Ghislaine Henneke / Pierre Raia / Inès Hugonneau-Beaufet / Gérard Pehau-Arnaudet / Patrick England / Erik Lindahl / Marc Delarue / Marta Carroni / Ludovic Sauguet / 要旨: Replicative DNA polymerases (DNAPs) have evolved the ability to copy the genome with high processivity and fidelity. In Eukarya and Archaea, the processivity of replicative DNAPs is greatly enhanced ...Replicative DNA polymerases (DNAPs) have evolved the ability to copy the genome with high processivity and fidelity. In Eukarya and Archaea, the processivity of replicative DNAPs is greatly enhanced by its binding to the proliferative cell nuclear antigen (PCNA) that encircles the DNA. We determined the cryo-EM structure of the DNA-bound PolD-PCNA complex from Pyrococcus abyssi at 3.77 Å. Using an integrative structural biology approach - combining cryo-EM, X-ray crystallography, protein-protein interaction measurements, and activity assays - we describe the molecular basis for the interaction and cooperativity between a replicative DNAP and PCNA. PolD recruits PCNA via a complex mechanism, which requires two different PIP-boxes. We infer that the second PIP-box, which is shared with the eukaryotic Polα replicative DNAP, plays a dual role in binding either PCNA or primase, and could be a master switch between an initiation and a processive phase during replication.
解像度: 2.7→70.37 Å / Cor.coef. Fo:Fc: 0.966 / Cor.coef. Fo:Fc free: 0.937 / SU B: 50.167 / SU ML: 0.427 / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R Free: 0.424 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : WITH TLS ADDED