3FM8

Crystal structure of full length centaurin alpha-1 bound with the FHA domain of KIF13B (CAPRI target)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Phosphorylation-independent dual-site binding of the FHA domain of KIF13 mediates phosphoinositide transport via centaurin alpha1.

Tong, Y.Tempel, W.Wang, H.Yamada, K.Shen, L.Senisterra, G.A.MacKenzie, F.Chishti, A.H.Park, H.W.

(2010) Proc Natl Acad Sci U S A 107: 20346-20351

  • DOI: 10.1073/pnas.1009008107
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Phosphatidylinositol 3,4,5-triphosphate (PIP3) plays a key role in neuronal polarization and axon formation. PIP3-containing vesicles are transported to axon tips by the kinesin KIF13B via an adaptor protein, centaurin α1 (CENTA1). KIF13B interacts w ...

    Phosphatidylinositol 3,4,5-triphosphate (PIP3) plays a key role in neuronal polarization and axon formation. PIP3-containing vesicles are transported to axon tips by the kinesin KIF13B via an adaptor protein, centaurin α1 (CENTA1). KIF13B interacts with CENTA1 through its forkhead-associated (FHA) domain. We solved the crystal structures of CENTA1 in ligand-free, KIF13B-FHA domain-bound, and PIP3 head group (IP4)-bound conformations, and the CENTA1/KIF13B-FHA/IP4 ternary complex. The first pleckstrin homology (PH) domain of CENTA1 specifically binds to PIP3, while the second binds to both PIP3 and phosphatidylinositol 3,4-biphosphate (PI(3,4)P(2)). The FHA domain of KIF13B interacts with the PH1 domain of one CENTA1 molecule and the ArfGAP domain of a second CENTA1 molecule in a threonine phosphorylation-independent fashion. We propose that full-length KIF13B and CENTA1 form heterotetramers that can bind four phosphoinositide molecules in the vesicle and transport it along the microtubule.


    Organizational Affiliation

    Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Kinesin-like protein KIF13B
A, B
124Homo sapiensMutation(s): 0 
Gene Names: KIF13BGAKINKIAA0639
Find proteins for Q9NQT8 (Homo sapiens)
Go to UniProtKB:  Q9NQT8
NIH Common Fund Data Resources
PHAROS  Q9NQT8
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Centaurin-alpha-1
C, D
392Homo sapiensMutation(s): 0 
Gene Names: CENTA1ADAP1
Find proteins for O75689 (Homo sapiens)
Go to UniProtKB:  O75689
NIH Common Fund Data Resources
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
C, D
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
C, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
UNX
Query on UNX

Download CCD File 
A, B, C, D
UNKNOWN ATOM OR ION
X
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 115.632α = 90
b = 115.632β = 90
c = 189.291γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-08-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2013-09-25
    Changes: Derived calculations
  • Version 1.3: 2017-11-01
    Changes: Refinement description