2A2F

Crystal Structure of Sec15 C-terminal domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.243 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Sec15 interacts with Rab11 via a novel domain and affects Rab11 localization in vivo.

Wu, S.Mehta, S.Q.Pichaud, F.Bellen, H.J.Quiocho, F.A.

(2005) Nat.Struct.Mol.Biol. 12: 879-885

  • DOI: 10.1038/nsmb987

  • PubMed Abstract: 
  • Sec15, a component of the exocyst, recognizes vesicle-associated Rab GTPases, helps target transport vesicles to the budding sites in yeast and is thought to recruit other exocyst proteins. Here we report the characterization of a 35-kDa fragment tha ...

    Sec15, a component of the exocyst, recognizes vesicle-associated Rab GTPases, helps target transport vesicles to the budding sites in yeast and is thought to recruit other exocyst proteins. Here we report the characterization of a 35-kDa fragment that comprises most of the C-terminal half of Drosophila melanogaster Sec15. This C-terminal domain was found to bind a subset of Rab GTPases, especially Rab11, in a GTP-dependent manner. We also provide evidence that in fly photoreceptors Sec15 colocalizes with Rab11 and that loss of Sec15 affects rhabdomere morphology. Determination of the 2.5-A crystal structure of the C-terminal domain revealed a novel fold consisting of ten alpha-helices equally distributed between two subdomains (N and C subdomains). We show that the C subdomain, mainly via a single helix, is sufficient for Rab binding.


    Organizational Affiliation

    Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas 77030, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Exocyst complex component Sec15
X
325Drosophila melanogasterMutation(s): 0 
Gene Names: Sec15
Find proteins for Q9VDE6 (Drosophila melanogaster)
Go to UniProtKB:  Q9VDE6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.243 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 80.500α = 90.00
b = 93.900β = 90.00
c = 123.500γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data collection
CNSphasing
SCALEPACKdata scaling
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-09-13
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance