2C0J

Crystal structure of the bet3-trs33 heterodimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Biochemical and Crystallographic Studies Reveal a Specific Interaction between Trapp Subunits Trs33P and Bet3P

Kim, M.-S.Yi, M.-J.Lee, K.-H.Wagner, J.Munger, C.Kim, Y.-G.Whiteway, M.Cygler, M.Oh, B.-H.Sacher, M.

(2005) Traffic 6: 1183

  • DOI: 10.1111/j.1600-0854.2005.00352.x

  • PubMed Abstract: 
  • Transport protein particle (TRAPP) comprises a family of two highly related multiprotein complexes, with seven common subunits, that serve to target different classes of transport vesicles to their appropriate compartments. Defining the architecture ...

    Transport protein particle (TRAPP) comprises a family of two highly related multiprotein complexes, with seven common subunits, that serve to target different classes of transport vesicles to their appropriate compartments. Defining the architecture of the complexes will advance our understanding of the functional differences between these highly related molecular machines. Genetic analyses in yeast suggested a specific interaction between the TRAPP subunits Bet3p and Trs33p. A mammalian bet3-trs33 complex was crystallized, and the structure was solved to 2.2 angstroms resolution. Intriguingly, the overall fold of the bet3 and trs33 monomers was similar, although the proteins had little overall sequence identity. In vitro experiments using yeast TRAPP subunits indicated that Bet3p binding to Trs33p facilitates the interaction between Bet3p and another TRAPP subunit, Bet5p. Mutational analysis suggests that yeast Trs33p facilitates other Bet3p protein-protein interactions. Furthermore, we show that Trs33p can increase the Golgi-localized pool of a mutated Bet3 protein normally found in the cytosol. We propose that one of the roles of Trs33p is to facilitate the incorporation of the Bet3p subunit into assembling TRAPP complexes.


    Organizational Affiliation

    Center for Biomolecular Recognition, Department of Life Sciences and Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3
A
161Homo sapiensMutation(s): 0 
Gene Names: TRAPPC3 (BET3)
Find proteins for O43617 (Homo sapiens)
Go to Gene View: TRAPPC3
Go to UniProtKB:  O43617
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
R32611_2
B
160Homo sapiensMutation(s): 0 
Gene Names: TRAPPC6A
Find proteins for O75865 (Homo sapiens)
Go to Gene View: TRAPPC6A
Go to UniProtKB:  O75865
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PLM
Query on PLM

Download SDF File 
Download CCD File 
A
PALMITIC ACID
C16 H32 O2
IPCSVZSSVZVIGE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.219 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 52.877α = 90.00
b = 70.515β = 90.00
c = 88.965γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-02-07
    Type: Initial release
  • Version 1.1: 2011-10-26
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Other, Refinement description, Structure summary, Version format compliance
  • Version 1.2: 2015-01-14
    Type: Derived calculations