- EMDB-21115: Structure of DNA Polymerase Zeta/DNA/dNTP Ternary Complex -
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基本情報
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データベース: EMDB / ID: EMD-21115
タイトル
Structure of DNA Polymerase Zeta/DNA/dNTP Ternary Complex
マップデータ
cryosparc map
試料
複合体: structure of DNA complex
タンパク質・ペプチド: DNA polymerase zeta catalytic subunit
タンパク質・ペプチド: DNA polymerase zeta processivity subunit
タンパク質・ペプチド: DNA polymerase delta small subunit
タンパク質・ペプチド: DNA polymerase delta subunit 3
DNA: DNA
リガンド: IRON/SULFUR CLUSTER
リガンド: CALCIUM ION
リガンド: 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE
リガンド: water
キーワード
DNA REPLICATION / DNA REPAIR / TRANSLESION DNA SYNTHESIS / DNA POLYMERASE / DNA BINDING PROTEIN
機能・相同性
機能・相同性情報
delta DNA polymerase complex / DNA amplification / zeta DNA polymerase complex / RNA-templated DNA biosynthetic process / Processive synthesis on the lagging strand / Removal of the Flap Intermediate / DNA replication, removal of RNA primer / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI ...delta DNA polymerase complex / DNA amplification / zeta DNA polymerase complex / RNA-templated DNA biosynthetic process / Processive synthesis on the lagging strand / Removal of the Flap Intermediate / DNA replication, removal of RNA primer / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / lagging strand elongation / double-strand break repair via break-induced replication / postreplication repair / DNA metabolic process / DNA strand elongation involved in DNA replication / error-free translesion synthesis / leading strand elongation / error-prone translesion synthesis / mismatch repair / nucleotide-excision repair / double-strand break repair via homologous recombination / base-excision repair / 4 iron, 4 sulfur cluster binding / DNA replication / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / nucleotide binding / chromatin / mitochondrion / DNA binding / nucleus / metal ion binding / cytosol 類似検索 - 分子機能
DNA polymerase delta subunit, OB-fold domain / DNA polymerase delta subunit 2, C-terminal domain / DNA polymerase delta subunit OB-fold domain / DNA polymerase zeta catalytic subunit / DNA polymerase delta/II small subunit family / C4-type zinc-finger of DNA polymerase delta / C4-type zinc-finger of DNA polymerase delta / Mad2-like / HORMA domain / HORMA domain ...DNA polymerase delta subunit, OB-fold domain / DNA polymerase delta subunit 2, C-terminal domain / DNA polymerase delta subunit OB-fold domain / DNA polymerase zeta catalytic subunit / DNA polymerase delta/II small subunit family / C4-type zinc-finger of DNA polymerase delta / C4-type zinc-finger of DNA polymerase delta / Mad2-like / HORMA domain / HORMA domain / HORMA domain profile. / HORMA domain superfamily / DNA polymerase alpha/delta/epsilon, subunit B / DNA polymerase alpha/epsilon subunit B / DNA polymerase family B, thumb domain / DNA polymerase family B signature. / DNA-directed DNA polymerase, family B, conserved site / DNA polymerase family B / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA-directed DNA polymerase, family B, multifunctional domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Ribonuclease H superfamily / Ribonuclease H-like superfamily / DNA/RNA polymerase superfamily 類似検索 - ドメイン・相同性
DNA polymerase zeta catalytic subunit / DNA polymerase zeta processivity subunit / DNA polymerase delta small subunit / DNA polymerase delta subunit 3 類似検索 - 構成要素
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01-GM124047
米国
引用
ジャーナル: Nat Struct Mol Biol / 年: 2020 タイトル: Structure and mechanism of B-family DNA polymerase ζ specialized for translesion DNA synthesis. 著者: Radhika Malik / Mykhailo Kopylov / Yacob Gomez-Llorente / Rinku Jain / Robert E Johnson / Louise Prakash / Satya Prakash / Iban Ubarretxena-Belandia / Aneel K Aggarwal / 要旨: DNA polymerase ζ (Polζ) belongs to the same B-family as high-fidelity replicative polymerases, yet is specialized for the extension reaction in translesion DNA synthesis (TLS). Despite its ...DNA polymerase ζ (Polζ) belongs to the same B-family as high-fidelity replicative polymerases, yet is specialized for the extension reaction in translesion DNA synthesis (TLS). Despite its importance in TLS, the structure of Polζ is unknown. We present cryo-EM structures of the Saccharomyces cerevisiae Polζ holoenzyme in the act of DNA synthesis (3.1 Å) and without DNA (4.1 Å). Polζ displays a pentameric ring-like architecture, with catalytic Rev3, accessory Pol31' Pol32 and two Rev7 subunits forming an uninterrupted daisy chain of protein-protein interactions. We also uncover the features that impose high fidelity during the nucleotide-incorporation step and those that accommodate mismatches and lesions during the extension reaction. Collectively, we decrypt the molecular underpinnings of Polζ's role in TLS and provide a framework for new cancer therapeutics.