4NF9

Structure of the Knl1/Nsl1 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Modular Assembly of RWD Domains on the Mis12 Complex Underlies Outer Kinetochore Organization.

Petrovic, A.Mosalaganti, S.Keller, J.Mattiuzzo, M.Overlack, K.Krenn, V.De Antoni, A.Wohlgemuth, S.Cecatiello, V.Pasqualato, S.Raunser, S.Musacchio, A.

(2014) Mol.Cell 53: 591-605

  • DOI: 10.1016/j.molcel.2014.01.019
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Faithful chromosome segregation is mandatory for cell and organismal viability. Kinetochores, large protein assemblies embedded in centromeric chromatin, establish a mechanical link between chromosomes and spindle microtubules. The KMN network, a con ...

    Faithful chromosome segregation is mandatory for cell and organismal viability. Kinetochores, large protein assemblies embedded in centromeric chromatin, establish a mechanical link between chromosomes and spindle microtubules. The KMN network, a conserved 10-subunit kinetochore complex, harbors the microtubule-binding interface. RWD domains in the KMN subunits Spc24 and Spc25 mediate kinetochore targeting of the microtubule-binding subunits by interacting with the Mis12 complex, a KMN subcomplex that tethers directly onto the underlying chromatin layer. Here, we show that Knl1, a KMN subunit involved in mitotic checkpoint signaling, also contains RWD domains that bind the Mis12 complex and that mediate kinetochore targeting of Knl1. By reporting the first 3D electron microscopy structure of the KMN network, we provide a comprehensive framework to interpret how interactions of RWD-containing proteins with the Mis12 complex shape KMN network topology. Our observations unveil a regular pattern in the construction of the outer kinetochore.


    Organizational Affiliation

    Department of Mechanistic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Stra├če 11, 44227 Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein CASC5
A, B
221Homo sapiensMutation(s): 0 
Gene Names: KNL1 (CASC5, KIAA1570)
Find proteins for Q8NG31 (Homo sapiens)
Go to Gene View: KNL1
Go to UniProtKB:  Q8NG31
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Kinetochore-associated protein NSL1 homolog
C, D
26Homo sapiensMutation(s): 0 
Gene Names: NSL1 (C1orf48)
Find proteins for Q96IY1 (Homo sapiens)
Go to Gene View: NSL1
Go to UniProtKB:  Q96IY1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 60.710α = 90.00
b = 71.630β = 90.00
c = 177.210γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
XSCALEdata scaling
XDSdata scaling
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-03-19
    Type: Initial release