5HNX

Structural basis of backwards motion in kinesin-14: minus-end directed nKn664 in the nucleotide-free state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.60 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural Basis of Backwards Motion in Kinesin-1-Kinesin-14 Chimera: Implication for Kinesin-14 Motility

Yamagishi, M.Shigematsu, H.Yokoyama, T.Kikkawa, M.Sugawa, M.Aoki, M.Shirouzu, M.Yajima, J.Nitta, R.

(2016) Structure 24: 1322-1334

  • DOI: 10.1016/j.str.2016.05.021
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Kinesin-14 is a unique minus-end-directed microtubule-based motor. A swinging motion of a class-specific N-terminal neck helix has been proposed to produce minus-end directionality. However, it is unclear how swinging of the neck helix is driven by A ...

    Kinesin-14 is a unique minus-end-directed microtubule-based motor. A swinging motion of a class-specific N-terminal neck helix has been proposed to produce minus-end directionality. However, it is unclear how swinging of the neck helix is driven by ATP hydrolysis utilizing the highly conserved catalytic core among all kinesins. Here, using a motility assay, we show that in addition to the neck helix, the conserved five residues at the C-terminal region in kinesin-14, namely the neck mimic, are necessary to give kinesin-1 an ability to reverse its directionality toward the minus end of microtubules. Our structural analyses further demonstrate that the C-terminal neck mimic, in cooperation with conformational changes in the catalytic core during ATP binding, forms a kinesin-14 bundle with the N-terminal neck helix to swing toward the minus end of microtubules. Thus, the neck mimic plays a crucial role in coupling the chemical ATPase reaction with the mechanical cycle to produce the minus-end-directed motility of kinesin-14.


    Organizational Affiliation

    RIKEN Center for Life Science Technologies, Tsurumi-ku, Yokohama 230-0045, Japan. Electronic address: ryo.nitta@riken.jp.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tubulin alpha-1B chainA451Bos taurusMutation(s): 0 
Find proteins for P81947 (Bos taurus)
Explore P81947 
Go to UniProtKB:  P81947
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tubulin beta-2B chainB445Bos taurusMutation(s): 0 
Gene Names: TUBB2B
Find proteins for Q6B856 (Bos taurus)
Explore Q6B856 
Go to UniProtKB:  Q6B856
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Protein claret segregational,kinesin-1/kinesin-14,Protein claret segregationalK371Drosophila melanogasterRattus norvegicusMutation(s): 0 
Gene Names: ncd
Find proteins for P20480 (Drosophila melanogaster)
Explore P20480 
Go to UniProtKB:  P20480
Find proteins for G3V6L4 (Rattus norvegicus)
Explore G3V6L4 
Go to UniProtKB:  G3V6L4
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TA1
Query on TA1

Download CCD File 
B
TAXOL
C47 H51 N O14
RCINICONZNJXQF-MZXODVADSA-N
 Ligand Interaction
GTP
Query on GTP

Download CCD File 
A
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
 Ligand Interaction
GDP
Query on GDP

Download CCD File 
B
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.60 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-08-10
    Type: Initial release
  • Version 1.1: 2016-08-17
    Changes: Database references
  • Version 1.2: 2016-09-07
    Changes: Other
  • Version 1.3: 2016-11-02
    Changes: Other