6WGE

Cryo-EM structure of human Cohesin-NIPBL-DNA complex without STAG1


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Cryo-EM structure of the human cohesin-NIPBL-DNA complex.

Shi, Z.Gao, H.Bai, X.C.Yu, H.

(2020) Science 368: 1454-1459

  • DOI: 10.1126/science.abb0981
  • Primary Citation of Related Structures:  
    6WGE, 6WG6, 6WG3, 6WG4

  • PubMed Abstract: 
  • As a ring-shaped adenosine triphosphatase (ATPase) machine, cohesin organizes the eukaryotic genome by extruding DNA loops and mediates sister chromatid cohesion by topologically entrapping DNA. How cohesin executes these fundamental DNA transactions is ...

    As a ring-shaped adenosine triphosphatase (ATPase) machine, cohesin organizes the eukaryotic genome by extruding DNA loops and mediates sister chromatid cohesion by topologically entrapping DNA. How cohesin executes these fundamental DNA transactions is not understood. Using cryo-electron microscopy (cryo-EM), we determined the structure of human cohesin bound to its loader NIPBL and DNA at medium resolution. Cohesin and NIPBL interact extensively and together form a central tunnel to entrap a 72-base pair DNA. NIPBL and DNA promote the engagement of cohesin's ATPase head domains and ATP binding. The hinge domains of cohesin adopt an "open washer" conformation and dock onto the STAG1 subunit. Our structure explains the synergistic activation of cohesin by NIPBL and DNA and provides insight into DNA entrapment by cohesin.


    Organizational Affiliation

    School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Structural maintenance of chromosomes protein 1A A1233Homo sapiensMutation(s): 1 
Gene Names: SMC1ADXS423EKIAA0178SB1.8SMC1SMC1L1
Find proteins for Q14683 (Homo sapiens)
Explore Q14683 
Go to UniProtKB:  Q14683
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PHAROS:  Q14683
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Structural maintenance of chromosomes protein 3 B1217Homo sapiensMutation(s): 1 
Gene Names: SMC3BAMBMHCSPG6SMC3L1
Find proteins for Q9UQE7 (Homo sapiens)
Explore Q9UQE7 
Go to UniProtKB:  Q9UQE7
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PHAROS:  Q9UQE7
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Double-strand-break repair protein rad21 homolog C631Homo sapiensMutation(s): 3 
Gene Names: RAD21HR21KIAA0078NXP1SCC1
Find proteins for O60216 (Homo sapiens)
Explore O60216 
Go to UniProtKB:  O60216
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PHAROS:  O60216
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Nipped-B-like protein E1642Homo sapiensMutation(s): 0 
Gene Names: NIPBLIDN3SCC2
Find proteins for Q6KC79 (Homo sapiens)
Explore Q6KC79 
Go to UniProtKB:  Q6KC79
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PHAROS:  Q6KC79
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsLengthOrganismImage
DNA (43-MER)F43Homo sapiens
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Entity ID: 6
MoleculeChainsLengthOrganismImage
DNA (43-MER)G43Homo sapiens
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ANP
Query on ANP

Download Ideal Coordinates CCD File 
A, B
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Cancer Prevention and Research Institute of Texas (CPRIT)United States--
Welch FoundationUnited States--

Revision History 

  • Version 1.0: 2020-05-20
    Type: Initial release
  • Version 1.1: 2020-05-27
    Changes: Database references
  • Version 1.2: 2020-07-08
    Changes: Database references