6WG6

Crystal structure of human SMC1-SMC3 hinge domain heterodimer in north-open conformation

  • Classification: CELL CYCLE/DNA
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2020-04-04 Released: 2020-05-20 
  • Deposition Author(s): Shi, Z.B., Yu, H.
  • Funding Organization(s): Cancer Prevention and Research Institute of Texas (CPRIT), Welch Foundation

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.54 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.253 

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

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Structural maintenance of chromosomes protein ACEGIK233Homo sapiensMutation(s): 0 
Gene Names: SMC1ADXS423EKIAA0178SB1.8SMC1SMC1L1
Find proteins for Q14683 (Homo sapiens)
Explore Q14683 
Go to UniProtKB:  Q14683
NIH Common Fund Data Resources
PHAROS:  Q14683
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Structural maintenance of chromosomes protein 3 BDFHJL256Homo sapiensMutation(s): 0 
Gene Names: SMC3BAMBMHCSPG6SMC3L1
Find proteins for Q9UQE7 (Homo sapiens)
Explore Q9UQE7 
Go to UniProtKB:  Q9UQE7
NIH Common Fund Data Resources
PHAROS:  Q9UQE7
Protein Feature View
Expand
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 3
    MoleculeChainsLengthOrganismImage
    poly(dT)M, N10Homo sapiens
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 3.54 Å
    • R-Value Free: 0.288 
    • R-Value Work: 0.252 
    • R-Value Observed: 0.253 
    • Space Group: P 21 21 21
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 123.985α = 90
    b = 145.021β = 90
    c = 315.949γ = 90
    Software Package:
    Software NamePurpose
    PHENIXrefinement
    HKL-3000data reduction
    HKL-3000data scaling
    PHENIXphasing
    Cootmodel building

    Structure Validation

    View Full Validation Report



    Entry History & Funding Information

    Deposition Data

    • Deposited Date: 2020-04-04 
    • Released Date: 2020-05-20 
    • Deposition Author(s): Shi, Z.B., Yu, H.

    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