2C0J

Crystal structure of the bet3-trs33 heterodimer

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

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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
  • Primary Citation of Related Structures:  
    2C0J

  • 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 of the complexes will advance our understanding of the functional differences between these highly related molecular machines ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3A161Homo sapiensMutation(s): 0 
Gene Names: TRAPPC3, BET3, CDABP0066
UniProt & NIH Common Fund Data Resources
Find proteins for O43617 (Homo sapiens)
Explore O43617 
Go to UniProtKB:  O43617
PHAROS:  O43617
GTEx:  ENSG00000054116 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO43617
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
R32611_2B160Homo sapiensMutation(s): 0 
Gene Names: TRAPPC6A, HSPC289
UniProt & NIH Common Fund Data Resources
Find proteins for O75865 (Homo sapiens)
Explore O75865 
Go to UniProtKB:  O75865
PHAROS:  O75865
GTEx:  ENSG00000007255 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO75865
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PLM
Query on PLM
Download Ideal Coordinates CCD File 
C [auth A]PALMITIC ACID
C16 H32 O2
IPCSVZSSVZVIGE-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.877α = 90
b = 70.515β = 90
c = 88.965γ = 90
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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