1CZ7

THE CRYSTAL STRUCTURE OF A MINUS-END DIRECTED MICROTUBULE MOTOR PROTEIN NCD REVEALS VARIABLE DIMER CONFORMATIONS

• PDB DOI: https://doi.org/10.2210/pdb1CZ7/pdb

• Classification: CONTRACTILE PROTEIN
• Organism(s): Drosophila melanogaster
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-09-01 Released: 1999-11-05 
• Deposition Author(s): Kozielski, F.K., De Bonis, S., Burmeister, W., Cohen-Addad, C., Wade, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.294 
• R-Value Work: 0.258 
• R-Value Observed: 0.258 

Literature

The crystal structure of the minus-end-directed microtubule motor protein ncd reveals variable dimer conformations.

Kozielski, F., De Bonis, S., Burmeister, W.P., Cohen-Addad, C., Wade, R.H.

(1999) Structure 7: 1407-1416

• PubMed: 10574799 
• DOI: https://doi.org/10.1016/s0969-2126(00)80030-1
• Primary Citation of Related Structures:  
  1CZ7


• PubMed Abstract: 
  

  The kinesin superfamily of microtubule-associated motor proteins are important for intracellular transport and for cell division in eukaryotes. Conventional kinesins have the motor domain at the N terminus of the heavy chain and move towards the plus end of microtubules. The ncd protein is necessary for chromosome segregation in meiosis. It belongs to a subfamily of kinesins that have the motor domain at the C terminus and move towards the minus end of microtubules.

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Organizational Affiliation: 

Institut de Biologie Structurale (CEA/CNRS), Grenoble, 38027, France.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 186.27 kDa 
• Atom Count: 11,439 
• Modelled Residue Count: 1,408 
• Deposited Residue Count: 1,624 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MICROTUBULE MOTOR PROTEIN NCD	A, B, C, D	406	Drosophila melanogaster	Mutation(s): 0
UniProt
Find proteins for P20480 (Drosophila melanogaster) Explore P20480  Go to UniProtKB:  P20480

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP	F [auth A], H [auth B], J [auth C], L [auth D]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
MG	E [auth A], G [auth B], I [auth C], K [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.294 
• R-Value Work: 0.258 
• R-Value Observed: 0.258 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 116.194	α = 90
b = 148.827	β = 90
c = 261.516	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-11-05 
Deposition Author(s): Kozielski, F.K., De Bonis, S., Burmeister, W., Cohen-Addad, C., Wade, R.

Revision History  

• Version 1.0: 1999-11-05
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations