6QVJ

HsCKK (human CAMSAP1) decorated 14pf taxol-GDP microtubule


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural determinants of microtubule minus end preference in CAMSAP CKK domains.

Atherton, J.Luo, Y.Xiang, S.Yang, C.Rai, A.Jiang, K.Stangier, M.Vemu, A.Cook, A.D.Wang, S.Roll-Mecak, A.Steinmetz, M.O.Akhmanova, A.Baldus, M.Moores, C.A.

(2019) Nat Commun 10: 5236-5236

  • DOI: 10.1038/s41467-019-13247-6
  • Primary Citation of Related Structures:  
    6QUS, 6QUY, 6QVE, 6QVJ

  • PubMed Abstract: 
  • CAMSAP/Patronins regulate microtubule minus-end dynamics. Their end specificity is mediated by their CKK domains, which we proposed recognise specific tubulin conformations found at minus ends. To critically test this idea, we compared the human CAMSAP1 CKK domain (HsCKK) with a CKK domain from Naegleria gruberi (NgCKK), which lacks minus-end specificity ...

    CAMSAP/Patronins regulate microtubule minus-end dynamics. Their end specificity is mediated by their CKK domains, which we proposed recognise specific tubulin conformations found at minus ends. To critically test this idea, we compared the human CAMSAP1 CKK domain (HsCKK) with a CKK domain from Naegleria gruberi (NgCKK), which lacks minus-end specificity. Here we report near-atomic cryo-electron microscopy structures of HsCKK- and NgCKK-microtubule complexes, which show that these CKK domains share the same protein fold, bind at the intradimer interprotofilament tubulin junction, but exhibit different footprints on microtubules. NMR experiments show that both HsCKK and NgCKK are remarkably rigid. However, whereas NgCKK binding does not alter the microtubule architecture, HsCKK remodels its microtubule interaction site and changes the underlying polymer structure because the tubulin lattice conformation is not optimal for its binding. Thus, in contrast to many MAPs, the HsCKK domain can differentiate subtly specific tubulin conformations to enable microtubule minus-end recognition.


    Organizational Affiliation

    Institute of Structural and Molecular Biology, Birkbeck, University of London, Malet Street, London, UK. c.moores@mail.cryst.bbk.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Calmodulin-regulated spectrin-associated protein 1 I174Homo sapiensMutation(s): 0 
Gene Names: CAMSAP1
Find proteins for Q5T5Y3 (Homo sapiens)
Explore Q5T5Y3 
Go to UniProtKB:  Q5T5Y3
NIH Common Fund Data Resources
PHAROS:  Q5T5Y3
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Tubulin alpha-1B chain OX451Homo sapiensMutation(s): 0 
Gene Names: TUBA1B
Find proteins for P68363 (Homo sapiens)
Explore P68363 
Go to UniProtKB:  P68363
NIH Common Fund Data Resources
PHAROS:  P68363
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Tubulin beta chain SU444Homo sapiensMutation(s): 0 
Gene Names: TUBBTUBB5OK/SW-cl.56
Find proteins for P07437 (Homo sapiens)
Explore P07437 
Go to UniProtKB:  P07437
NIH Common Fund Data Resources
PHAROS:  P07437
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomMR/R000352/1
Netherlands722.016.002
Netherlands175.010.2009.002
Netherlands718.015.001
Netherlands184.032.207
Swiss National Science FoundationSwitzerland31003A_166608

Revision History  (Full details and data files)

  • Version 1.0: 2019-11-27
    Type: Initial release
  • Version 1.1: 2019-12-04
    Changes: Database references
  • Version 1.2: 2019-12-18
    Changes: Other
  • Version 1.3: 2020-08-26
    Changes: Database references, Derived calculations
  • Version 1.4: 2020-09-09
    Changes: Database references