- EMDB-6941: Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-6941
タイトル
Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72-bp Origin DNA containing ACS and B1 element
マップデータ
試料
複合体: Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72-bp Origin DNA containing ACS and B1 element
タンパク質・ペプチド: Origin recognition complex subunit 1
タンパク質・ペプチド: Origin recognition complex subunit 2
タンパク質・ペプチド: Origin recognition complex subunit 3
タンパク質・ペプチド: Origin recognition complex subunit 4
タンパク質・ペプチド: Origin recognition complex subunit 5
タンパク質・ペプチド: Origin recognition complex subunit 6
DNA: 72bp-oring DNA, ACS305, T-rich
DNA: 72bp-oring DNA, ACS305, A-rich
リガンド: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
リガンド: MAGNESIUM ION
キーワード
Origin Recognition Complex / DNA replication initiation / 72-bp origin DNA / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex
機能・相同性
機能・相同性情報
CDC6 association with the ORC:origin complex / Cul8-RING ubiquitin ligase complex / maintenance of rDNA / Assembly of the ORC complex at the origin of replication / nuclear origin of replication recognition complex / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / Activation of the pre-replicative complex / nuclear pre-replicative complex / nucleosome organization / Activation of ATR in response to replication stress ...CDC6 association with the ORC:origin complex / Cul8-RING ubiquitin ligase complex / maintenance of rDNA / Assembly of the ORC complex at the origin of replication / nuclear origin of replication recognition complex / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / Activation of the pre-replicative complex / nuclear pre-replicative complex / nucleosome organization / Activation of ATR in response to replication stress / DNA replication preinitiation complex / mitotic DNA replication checkpoint signaling / silent mating-type cassette heterochromatin formation / Orc1 removal from chromatin / regulation of DNA replication / DNA replication origin binding / DNA replication initiation / subtelomeric heterochromatin formation / nucleosome binding / chromosome, telomeric region / chromatin binding / ATP hydrolysis activity / nucleoplasm / ATP binding / metal ion binding / nucleus 類似検索 - 分子機能
ジャーナル: Nature / 年: 2018 タイトル: Structure of the origin recognition complex bound to DNA replication origin. 著者: Ningning Li / Wai Hei Lam / Yuanliang Zhai / Jiaxuan Cheng / Erchao Cheng / Yongqian Zhao / Ning Gao / Bik-Kwoon Tye / 要旨: The six-subunit origin recognition complex (ORC) binds to DNA to mark the site for the initiation of replication in eukaryotes. Here we report a 3 Å cryo-electron microscopy structure of the ...The six-subunit origin recognition complex (ORC) binds to DNA to mark the site for the initiation of replication in eukaryotes. Here we report a 3 Å cryo-electron microscopy structure of the Saccharomyces cerevisiae ORC bound to a 72-base-pair origin DNA sequence that contains the ARS consensus sequence (ACS) and the B1 element. The ORC encircles DNA through extensive interactions with both phosphate backbone and bases, and bends DNA at the ACS and B1 sites. Specific recognition of thymine residues in the ACS is carried out by a conserved basic amino acid motif of Orc1 in the minor groove, and by a species-specific helical insertion motif of Orc4 in the major groove. Moreover, similar insertions into major and minor grooves are also embedded in the B1 site by basic patch motifs from Orc2 and Orc5, respectively, to contact bases and to bend DNA. This work pinpoints a conserved role of ORC in modulating DNA structure to facilitate origin selection and helicase loading in eukaryotes.
全体 : Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72...
全体
名称: Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72-bp Origin DNA containing ACS and B1 element
要素
複合体: Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72-bp Origin DNA containing ACS and B1 element
タンパク質・ペプチド: Origin recognition complex subunit 1
タンパク質・ペプチド: Origin recognition complex subunit 2
タンパク質・ペプチド: Origin recognition complex subunit 3
タンパク質・ペプチド: Origin recognition complex subunit 4
タンパク質・ペプチド: Origin recognition complex subunit 5
タンパク質・ペプチド: Origin recognition complex subunit 6
DNA: 72bp-oring DNA, ACS305, T-rich
DNA: 72bp-oring DNA, ACS305, A-rich
リガンド: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
リガンド: MAGNESIUM ION
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超分子 #1: Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72...
超分子
名称: Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72-bp Origin DNA containing ACS and B1 element タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#8 詳細: Saccharomyces Cerevisiae Origin Recognition Complex (Orc1-6, chain A-F) Bound to a 72-bp Origin DNA (a 72-bp dsDNA chain G-H) containing ACS and B1 element