7JPP

ORC-O2WH: Human Origin Recognition Complex (ORC) with dynamic/unresolved ORC1 AAA+ domain

  • Classification: REPLICATION
  • Organism(s): Homo sapiens
  • Expression System: Spodoptera frugiperda
  • Mutation(s): No 

  • Deposited: 2020-08-09 Released: 2020-09-09 
  • Deposition Author(s): Jaremko, M.J., Joshua-Tor, L.
  • Funding Organization(s): Howard Hughes Medical Institute (HHMI), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

The dynamic nature of the human Origin Recognition Complex revealed through five cryoEM structures.

Jaremko, M.J.On, K.F.Thomas, D.R.Stillman, B.Joshua-Tor, L.

(2020) Elife 9

  • DOI: 10.7554/eLife.58622
  • Primary Citation of Related Structures:  
    7JPO, 7JPP, 7JPQ, 7JPR, 7JPS

  • PubMed Abstract: 
  • Genome replication is initiated from specific origin sites established by dynamic events. The Origin Recognition Complex (ORC) is necessary for orchestrating the initiation process by binding to origin DNA, recruiting CDC6, and assembling the MCM replicative helicase on DNA ...

    Genome replication is initiated from specific origin sites established by dynamic events. The Origin Recognition Complex (ORC) is necessary for orchestrating the initiation process by binding to origin DNA, recruiting CDC6, and assembling the MCM replicative helicase on DNA. Here we report five cryoEM structures of the human ORC (HsORC) that illustrate the native flexibility of the complex. The absence of ORC1 revealed a compact, stable complex of ORC2-5. Introduction of ORC1 opens the complex into several dynamic conformations. Two structures revealed dynamic movements of the ORC1 AAA+ and ORC2 winged-helix domains that likely impact DNA incorporation into the ORC core. Additional twist and pinch motions were observed in an open ORC conformation revealing a hinge at the ORC5·ORC3 interface that may facilitate ORC binding to DNA. Finally, a structure of ORC was determined with endogenous DNA bound in the core revealing important differences between human and yeast origin recognition.


    Organizational Affiliation

    Cold Spring Harbor Laboratory, New York, United States.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Origin recognition complex subunit 1A392Homo sapiensMutation(s): 0 
Gene Names: ORC1ORC1LPARC1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13415 (Homo sapiens)
Explore Q13415 
Go to UniProtKB:  Q13415
PHAROS:  Q13415
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Origin recognition complex subunit 2B577Homo sapiensMutation(s): 0 
Gene Names: ORC2ORC2L
UniProt & NIH Common Fund Data Resources
Find proteins for Q13416 (Homo sapiens)
Explore Q13416 
Go to UniProtKB:  Q13416
PHAROS:  Q13416
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Origin recognition complex subunit 3C712Homo sapiensMutation(s): 0 
Gene Names: ORC3LATHEOORC3L
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UBD5 (Homo sapiens)
Explore Q9UBD5 
Go to UniProtKB:  Q9UBD5
PHAROS:  Q9UBD5
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Origin recognition complex subunit 4D436Homo sapiensMutation(s): 0 
Gene Names: ORC4ORC4L
UniProt & NIH Common Fund Data Resources
Find proteins for O43929 (Homo sapiens)
Explore O43929 
Go to UniProtKB:  O43929
PHAROS:  O43929
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Origin recognition complex subunit 5E435Homo sapiensMutation(s): 0 
Gene Names: ORC5ORC5L
UniProt & NIH Common Fund Data Resources
Find proteins for O43913 (Homo sapiens)
Explore O43913 
Go to UniProtKB:  O43913
PHAROS:  O43913
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP (Subject of Investigation/LOI)
Query on ATP

Download Ideal Coordinates CCD File 
F [auth D], H [auth E]ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MG (Subject of Investigation/LOI)
Query on MG

Download Ideal Coordinates CCD File 
G [auth D], I [auth E]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Howard Hughes Medical Institute (HHMI)United States--
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesF32GM129923
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM45436

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-09
    Type: Initial release