6J8Y

Crystal structure of the human RAD9-HUS1-RAD1-RHINO complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the RAD9-RAD1-HUS1 checkpoint clamp bound to RHINO sheds light on the other side of the DNA clamp.

Hara, K.Iida, N.Tamafune, R.Ohashi, E.Sakurai, H.Ishikawa, Y.Hishiki, A.Hashimoto, H.

(2020) J Biol Chem 295: 899-904

  • DOI: 10.1074/jbc.AC119.011816
  • Primary Citation of Related Structures:  
    6J8Y

  • PubMed Abstract: 
  • DNA clamp, a highly conserved ring-shaped protein, binds dsDNA within its central pore. Also, DNA clamp interacts with various nuclear proteins on its front, thereby stimulating their enzymatic activities and biological functions. It has been assumed ...

    DNA clamp, a highly conserved ring-shaped protein, binds dsDNA within its central pore. Also, DNA clamp interacts with various nuclear proteins on its front, thereby stimulating their enzymatic activities and biological functions. It has been assumed that the DNA clamp is a functionally single-faced ring from bacteria to humans. Here, we report the crystal structure of the heterotrimeric RAD9-RAD1-HUS1 (9-1-1) checkpoint clamp bound to a peptide of RHINO, a recently identified cancer-related protein that interacts with 9-1-1 and promotes activation of the DNA damage checkpoint. This is the first structure of 9-1-1 bound to its partner. The structure reveals that RHINO is unexpectedly bound to the edge and around the back of the 9-1-1 ring through specific interactions with the RAD1 subunit of 9-1-1. Our finding indicates that 9-1-1 is a functionally double-faced DNA clamp.


    Organizational Affiliation

    School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Suruga-ku, Shizuoka, Shizuoka 422-8002, Japan hash@u-shizuoka-ken.ac.jp.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cell cycle checkpoint control protein RAD9AA270Homo sapiensMutation(s): 0 
Gene Names: RAD9A
EC: 3.1.11.2
Find proteins for Q99638 (Homo sapiens)
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Go to UniProtKB:  Q99638
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PHAROS  Q99638
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Checkpoint protein HUS1B286Homo sapiensMutation(s): 0 
Gene Names: HUS1
Find proteins for O60921 (Homo sapiens)
Explore O60921 
Go to UniProtKB:  O60921
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PHAROS  O60921
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Cell cycle checkpoint protein RAD1C282Homo sapiensMutation(s): 0 
Gene Names: RAD1REC1
EC: 3.1.11.2
Find proteins for O60671 (Homo sapiens)
Explore O60671 
Go to UniProtKB:  O60671
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PHAROS  O60671
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
RAD9, HUS1, RAD1-interacting nuclear orphan protein 1D20Homo sapiensMutation(s): 0 
Gene Names: RHNO1C12orf32RHINOHKMT1188
Find proteins for Q9BSD3 (Homo sapiens)
Explore Q9BSD3 
Go to UniProtKB:  Q9BSD3
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PHAROS  Q9BSD3
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.221 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.937α = 90
b = 136.19β = 90
c = 154.043γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
Cootmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-12-04
    Type: Initial release
  • Version 1.1: 2019-12-11
    Changes: Database references
  • Version 1.2: 2020-02-05
    Changes: Database references