4FUW

Crystal structure of Ego3 mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Ego3 functions as a homodimer to mediate the interaction between Gtr1-Gtr2 and Ego1 in the ego complex to activate TORC1.

Zhang, T.Peli-Gulli, M.P.Yang, H.De Virgilio, C.Ding, J.

(2012) Structure 20: 2151-2160

  • DOI: 10.1016/j.str.2012.09.019
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The yeast EGO complex, consisting of Gtr1, Gtr2, Ego1, and Ego3, localizes to the endosomal and vacuolar membranes and plays a pivotal role in cell growth and autophagy regulation through relaying amino acid signals to activate TORC1. Here, we report ...

    The yeast EGO complex, consisting of Gtr1, Gtr2, Ego1, and Ego3, localizes to the endosomal and vacuolar membranes and plays a pivotal role in cell growth and autophagy regulation through relaying amino acid signals to activate TORC1. Here, we report the crystal structures of a wild-type and a mutant form of Saccharomyces cerevisiae Ego3. Ego3 assumes a homodimeric structure similar to that of the mammalian MP1-p14 heterodimer and the C-terminal domains of the yeast Gtr1-Gtr2 heterodimer, both of which function in TORC1 signaling. Structural and genetic data demonstrate that the unique dimer conformation of Ego3 is essential for the integrity and function of the EGO complex. Structural and functional data also identify a potential binding site for Gtr1-Gtr2. These results suggest a structural conservation of the protein components involved in amino acid signaling to TORC1 and reveal structural insights into the molecular mechanism of Ego3 function in TORC1 signaling.


    Organizational Affiliation

    State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein SLM4
A, B
161Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SLM4 (EGO3, GSE1)
Find proteins for P38247 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38247
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.203 
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 60.526α = 90.00
b = 60.526β = 90.00
c = 116.851γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
REFMACrefinement
HKL-2000data reduction
PHASESphasing
PDB_EXTRACTdata extraction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-11-28
    Type: Initial release
  • Version 1.1: 2013-09-04
    Type: Database references