6Q2N

Cryo-EM structure of RET/GFRa1/GDNF extracellular complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.4 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Cryo-EM analyses reveal the common mechanism and diversification in the activation of RET by different ligands.

Li, J.Shang, G.Chen, Y.J.Brautigam, C.A.Liou, J.Zhang, X.Bai, X.C.

(2019) Elife 8: --

  • DOI: 10.7554/eLife.47650
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • RET is a receptor tyrosine kinase (RTK) that plays essential roles in development and has been implicated in several human diseases. Different from most of RTKs, RET requires not only its cognate ligands but also co-receptors for activation, the mech ...

    RET is a receptor tyrosine kinase (RTK) that plays essential roles in development and has been implicated in several human diseases. Different from most of RTKs, RET requires not only its cognate ligands but also co-receptors for activation, the mechanisms of which remain unclear due to lack of high-resolution structures of the ligand/co-receptor/receptor complexes. Here, we report cryo-EM structures of the extracellular region ternary complexes of GDF15/GFRAL/RET, GDNF/GFRα1/RET, NRTN/GFRα2/RET and ARTN/GFRα3/RET. These structures reveal that all the four ligand/co-receptor pairs, while using different atomic interactions, induce a specific dimerization mode of RET that is poised to bring the two kinase domains into close proximity for cross-phosphorylation. The NRTN/GFRα2/RET dimeric complex further pack into a tetrameric assembly, which is shown by our cell-based assays to regulate the endocytosis of RET. Our analyses therefore reveal both the common mechanism and diversification in the activation of RET by different ligands.


    Organizational Affiliation

    Department of Physiology, University of Texas Southwestern Medical Center, Dallas, United States.,Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, United States.,Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, United States.,Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, United States.,Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glial cell line-derived neurotrophic factor
A, B
134Homo sapiensMutation(s): 0 
Gene Names: GDNF
Find proteins for P39905 (Homo sapiens)
Go to Gene View: GDNF
Go to UniProtKB:  P39905
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GDNF family receptor alpha-1
C, D
412Homo sapiensMutation(s): 0 
Gene Names: GFRA1 (GDNFRA, RETL1, TRNR1)
Find proteins for P56159 (Homo sapiens)
Go to Gene View: GFRA1
Go to UniProtKB:  P56159
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Proto-oncogene tyrosine-protein kinase receptor Ret
E, F
617Homo sapiensMutation(s): 0 
Gene Names: RET (CDHF12, CDHR16, PTC, RET51)
EC: 2.7.10.1
Find proteins for P07949 (Homo sapiens)
Go to Gene View: RET
Go to UniProtKB:  P07949
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
E, F
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.4 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-10-02
    Type: Initial release