6TD6

Structure of Drosophila melanogaster Dispatched bound to a modified Hedgehog ligand, HhN-C85II


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.76 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report



Literature

Cryo-EM structure of the Hedgehog release protein Dispatched.

Cannac, F.Qi, C.Falschlunger, J.Hausmann, G.Basler, K.Korkhov, V.M.

(2020) Sci Adv 6: eaay7928-eaay7928

  • DOI: 10.1126/sciadv.aay7928
  • Primary Citation of Related Structures:  
    6TBU, 6TD6

  • PubMed Abstract: 
  • The Hedgehog (Hh) signaling pathway controls embryonic development and adult tissue homeostasis in multicellular organisms. In Drosophila melanogaster , the pathway is primed by secretion of a dually lipid-modified morphogen, Hh, a process depend ...

    The Hedgehog (Hh) signaling pathway controls embryonic development and adult tissue homeostasis in multicellular organisms. In Drosophila melanogaster , the pathway is primed by secretion of a dually lipid-modified morphogen, Hh, a process dependent on a membrane-integral protein Dispatched. Although Dispatched is a critical component of the pathway, the structural basis of its activity has, so far, not been described. Here, we describe a cryo-electron microscopy structure of the D. melanogaster Dispatched at 3.2-Å resolution. The ectodomains of Dispatched adopt an open conformation suggestive of a receptor-chaperone role. A three-dimensional reconstruction of Dispatched bound to Hh confirms the ability of Dispatched to bind Hh but using a unique mode distinct from those previously observed in structures of Hh complexes. The structure may represent the state of the complex that precedes shedding of Hh from the surface of the morphogen-releasing cell.


    Organizational Affiliation

    Institute of Biochemistry, ETH-Zürich, 8093 Zürich, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein dispatched A1218Drosophila melanogasterMutation(s): 0 
Gene Names: dispCG2019
Find proteins for Q9VNJ5 (Drosophila melanogaster)
Explore Q9VNJ5 
Go to UniProtKB:  Q9VNJ5
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Protein hedgehog B471Drosophila melanogasterMutation(s): 0 
Gene Names: hhCG4637
Find proteins for Q02936 (Drosophila melanogaster)
Explore Q02936 
Go to UniProtKB:  Q02936
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
C
2 N-Glycosylation Oligosaccharides Interaction
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
A
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.76 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerland150665 & 176992

Revision History 

  • Version 1.0: 2020-06-03
    Type: Initial release
  • Version 1.1: 2020-06-17
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary