Structural mechanism for replication origin binding and remodeling by a metazoan origin recognition complex and its co-loader Cdc6

The origin recognition complex (ORC) is essential for loading the Mcm2–7 replicative helicase onto DNA during DNA replication initiation. Here, the authors describe several cryo-electron microscopy structures of Drosophila ORC bound to DNA and its cofactor Cdc6 and also report an in vitro reconstitu...

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Bibliographic Details
Main Authors: Jan Marten Schmidt, Franziska Bleichert
Format: Article
Language:English
Published: Nature Publishing Group 2020-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-18067-7
Description
Summary:The origin recognition complex (ORC) is essential for loading the Mcm2–7 replicative helicase onto DNA during DNA replication initiation. Here, the authors describe several cryo-electron microscopy structures of Drosophila ORC bound to DNA and its cofactor Cdc6 and also report an in vitro reconstitution system for Drosophila Mcm2–7 loading, revealing unexpected features of ORC’s DNA binding and remodeling mechanism during Mcm2–7 loading.
ISSN:2041-1723