7RYP

Cryo-EM structure of KIFBP:KIF15


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.1 of the entry. See complete history


Literature

Kinesin-binding protein remodels the kinesin motor to prevent microtubule binding.

Solon, A.L.Tan, Z.Schutt, K.L.Jepsen, L.Haynes, S.E.Nesvizhskii, A.I.Sept, D.Stumpff, J.Ohi, R.Cianfrocco, M.A.

(2021) Sci Adv 7: eabj9812-eabj9812

  • DOI: https://doi.org/10.1126/sciadv.abj9812
  • Primary Citation of Related Structures:  
    7RSI, 7RSQ, 7RYP, 7RYQ

  • PubMed Abstract: 

    Kinesins are regulated in space and time to ensure activation only in the presence of cargo. Kinesin-binding protein (KIFBP), which is mutated in Goldberg-Shprintzen syndrome, binds to and inhibits the catalytic motor heads of 8 of 45 kinesin superfamily members, but the mechanism remains poorly defined. Here, we used cryo–electron microscopy and cross-linking mass spectrometry to determine high-resolution structures of KIFBP alone and in complex with two mitotic kinesins, revealing structural remodeling of kinesin by KIFBP. We find that KIFBP remodels kinesin motors and blocks microtubule binding (i) via allosteric changes to kinesin and (ii) by sterically blocking access to the microtubule. We identified two regions of KIFBP necessary for kinesin binding and cellular regulation during mitosis. Together, this work further elucidates the molecular mechanism of KIFBP-mediated kinesin inhibition and supports a model in which structural rearrangement of kinesin motor domains by KIFBP abrogates motor protein activity.


  • Organizational Affiliation

    Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Kinesin-like protein KIF15375Homo sapiensMutation(s): 0 
Gene Names: KIF15KLP2KNSL7
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NS87 (Homo sapiens)
Explore Q9NS87 
Go to UniProtKB:  Q9NS87
PHAROS:  Q9NS87
GTEx:  ENSG00000163808 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NS87
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
KIF-binding protein621Homo sapiensMutation(s): 0 
Gene Names: KIFBPKBPKIAA1279KIF1BP
UniProt & NIH Common Fund Data Resources
Find proteins for Q96EK5 (Homo sapiens)
Explore Q96EK5 
Go to UniProtKB:  Q96EK5
PHAROS:  Q96EK5
GTEx:  ENSG00000198954 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ96EK5
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTRosettaEM

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM094231
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM136822
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM121491
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM086610
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM111725

Revision History  (Full details and data files)

  • Version 1.0: 2021-09-08
    Type: Initial release
  • Version 2.0: 2021-12-01
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Structure summary
  • Version 2.1: 2024-06-05
    Changes: Data collection