5YBE

Structure of KANK1/KIF21A complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.184 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural analyses of key features in the KANK1/KIF21A complex yield mechanistic insights into the cross-talk between microtubules and the cell cortex.

Weng, Z.Shang, Y.Yao, D.Zhu, J.Zhang, R.

(2018) J Biol Chem 293: 215-225

  • DOI: 10.1074/jbc.M117.816017
  • Primary Citation of Related Structures:  
    5YBE

  • PubMed Abstract: 
  • The cross-talk between dynamic microtubules and the cell cortex plays important roles in cell division, polarity, and migration. A critical adaptor that links the plus ends of microtubules with the cell cortex is the KANK N-terminal motif and ankyrin repeat domains 1 (KANK1)/kinesin family member 21A (KIF21A) complex ...

    The cross-talk between dynamic microtubules and the cell cortex plays important roles in cell division, polarity, and migration. A critical adaptor that links the plus ends of microtubules with the cell cortex is the KANK N-terminal motif and ankyrin repeat domains 1 (KANK1)/kinesin family member 21A (KIF21A) complex. Genetic defects in these two proteins are associated with various cancers and developmental diseases, such as congenital fibrosis of the extraocular muscles type 1. However, the molecular mechanism governing the KANK1/KIF21A interaction and the role of the conserved ankyrin (ANK) repeats in this interaction are still unclear. In this study, we present the crystal structure of the KANK1·KIF21A complex at 2.1 Å resolution. The structure, together with biochemical studies, revealed that a five-helix-bundle-capping domain immediately preceding the ANK repeats of KANK1 forms a structural and functional supramodule with its ANK repeats in binding to an evolutionarily conserved peptide located in the middle of KIF21A. We also show that several missense mutations present in cancer patients are located at the interface of the KANK1·KIF21A complex and destabilize its formation. In conclusion, our study elucidates the molecular basis underlying the KANK1/KIF21A interaction and also provides possible mechanistic explanations for the diseases caused by mutations in KANK1 and KIF21A .


    Organizational Affiliation

    the Shanghai Research Center, Chinese Academy of Sciences, Shanghai 200031, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Kank1 proteinA286Mus musculusMutation(s): 0 
Gene Names: Kank1
UniProt & NIH Common Fund Data Resources
Find proteins for Q6AXG6 (Mus musculus)
Explore Q6AXG6 
Go to UniProtKB:  Q6AXG6
IMPC:  MGI:2147707
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
KIF21AB19Mus musculusMutation(s): 0 
Gene Names: Kif21aKiaa1708
UniProt & NIH Common Fund Data Resources
Find proteins for Q9QXL2 (Mus musculus)
Explore Q9QXL2 
Go to UniProtKB:  Q9QXL2
IMPC:  MGI:109188
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download Ideal Coordinates CCD File 
C [auth B]1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.184 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 35.513α = 90
b = 51.958β = 90
c = 136.984γ = 90
Software Package:
Software NamePurpose
DENZOdata collection
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
PHENIXphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31470733; U1532121
Chinese Academy of SciencesChinaXDB08030104

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-29
    Type: Initial release
  • Version 1.1: 2017-12-13
    Changes: Database references
  • Version 1.2: 2018-01-17
    Changes: Database references