1MG4

STRUCTURE OF N-TERMINAL DOUBLECORTIN DOMAIN FROM DCLK: WILD TYPE PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.187 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.155 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The DCX-domain Tandems of Doublecortin and Doublecortin-like Kinase

Kim, M.H.Cierpickil, T.Derewenda, U.Krowarsch, D.Feng, Y.Devedjiev, Y.Dauter, Z.Walsh, C.A.Otlewski, J.Bushweller, J.H.Derewenda, Z.

(2003) Nat Struct Biol 10: 324-333

  • DOI: 10.1038/nsb918
  • Primary Citation of Related Structures:  
    1MFW, 1MG4, 1MJD

  • PubMed Abstract: 
  • The doublecortin-like domains (DCX), which typically occur in tandem, are novel microtubule-binding modules. DCX tandems are found in doublecortin, a 360-residue protein expressed in migrating neurons; the doublecortin-like kinase (DCLK); the product of the RP1 gene that is responsible for a form of inherited blindness; and several other proteins ...

    The doublecortin-like domains (DCX), which typically occur in tandem, are novel microtubule-binding modules. DCX tandems are found in doublecortin, a 360-residue protein expressed in migrating neurons; the doublecortin-like kinase (DCLK); the product of the RP1 gene that is responsible for a form of inherited blindness; and several other proteins. Mutations in the gene encoding doublecortin cause lissencephaly in males and the 'double-cortex syndrome' in females. We here report a solution structure of the N-terminal DCX domain of human doublecortin and a 1.5 A resolution crystal structure of the equivalent domain from human DCLK. Both show a stable, ubiquitin-like tertiary fold with distinct structural similarities to GTPase-binding domains. We also show that the C-terminal DCX domains of both proteins are only partially folded. In functional assays, the N-terminal DCX domain of doublecortin binds only to assembled microtubules, whereas the C-terminal domain binds to both microtubules and unpolymerized tubulin.


    Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia 22908-0736, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DOUBLECORTIN-LIKE KINASE (N-TERMINAL DOMAIN)A113Homo sapiensMutation(s): 0 
Gene Names: DCLK1DCAMKL1DCDC3AKIAA0369
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O15075 (Homo sapiens)
Explore O15075 
Go to UniProtKB:  O15075
PHAROS:  O15075
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO15075
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.187 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.155 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.981α = 90
b = 29.621β = 101.33
c = 40.332γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-04-29
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance