3L1C

Kinesin-14 Protein Ncd, T436S Mutant

• PDB DOI: https://doi.org/10.2210/pdb3L1C/pdb

• Classification: MOTOR PROTEIN
• Organism(s): Drosophila melanogaster
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2009-12-11 Released: 2010-08-18 
• Deposition Author(s): Kull, F.J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.75 Å
• R-Value Free: 0.292 
• R-Value Work: 0.238 
• R-Value Observed: 0.238 

Literature

A kinesin motor in a force-producing conformation.

Heuston, E., Bronner, C.E., Kull, F.J., Endow, S.A.

(2010) BMC Struct Biol 10: 19-19

• PubMed: 20602775 
• DOI: https://doi.org/10.1186/1472-6807-10-19
• Primary Citation of Related Structures:  
  3L1C


• PubMed Abstract: 
  

  Kinesin motors hydrolyze ATP to produce force and move along microtubules, converting chemical energy into work by a mechanism that is only poorly understood. Key transitions and intermediate states in the process are still structurally uncharacterized, and remain outstanding questions in the field. Perturbing the motor by introducing point mutations could stabilize transitional or unstable states, providing critical information about these rarer states.

---

Organizational Affiliation: 

Department of Chemistry, Dartmouth College, Hanover, NH 03755, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 88.1 kDa 
• Atom Count: 5,768 
• Modelled Residue Count: 686 
• Deposited Residue Count: 766 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein claret segregational	A, B	383	Drosophila melanogaster	Mutation(s): 1  Gene Names: ncd
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	D [auth A], F [auth B]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
MG	C [auth A], E [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.75 Å
• R-Value Free: 0.292 
• R-Value Work: 0.238 
• R-Value Observed: 0.238 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 162.015	α = 90
b = 66.417	β = 98.2
c = 93.567	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
XDS	data reduction
XDS	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-08-18 
Deposition Author(s): Kull, F.J.

Revision History  

• Version 1.0: 2010-08-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description, Source and taxonomy, Structure summary