6V4U

Cryo-EM structure of SMCR8-C9orf72-WDR41 complex

  • Classification: TRANSPORT PROTEIN
  • Organism(s): Homo sapiens
  • Expression System: Homo sapiens
  • Mutation(s): No 

  • Deposited: 2019-12-01 Released: 2020-09-02 
  • Deposition Author(s): Su, M.Y., Hurley, J.H.
  • Funding Organization(s): National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI), Department of Defense (DOD, United States)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the C9orf72 ARF GAP complex that is haploinsufficient in ALS and FTD.

Su, M.Y.Fromm, S.A.Zoncu, R.Hurley, J.H.

(2020) Nature 585: 251-255

  • DOI: 10.1038/s41586-020-2633-x
  • Primary Citation of Related Structures:  
    6V4U

  • PubMed Abstract: 
  • Mutation of C9orf72 is the most prevalent defect associated with amyotrophic lateral sclerosis and frontotemporal degeneration 1 . Together with hexanucleotide-repeat expansion 2,3 , haploinsufficiency of C9orf72 contributes to ...

    Mutation of C9orf72 is the most prevalent defect associated with amyotrophic lateral sclerosis and frontotemporal degeneration 1 . Together with hexanucleotide-repeat expansion 2,3 , haploinsufficiency of C9orf72 contributes to neuronal dysfunction 4-6 . Here we determine the structure of the C9orf72-SMCR8-WDR41 complex by cryo-electron microscopy. C9orf72 and SMCR8 both contain longin and DENN (differentially expressed in normal and neoplastic cells) domains 7 , and WDR41 is a β-propeller protein that binds to SMCR8 such that the whole structure resembles an eye slip hook. Contacts between WDR41 and the DENN domain of SMCR8 drive the lysosomal localization of the complex in conditions of amino acid starvation. The structure suggested that C9orf72-SMCR8 is a GTPase-activating protein (GAP), and we found that C9orf72-SMCR8-WDR41 acts as a GAP for the ARF family of small GTPases. These data shed light on the function of C9orf72 in normal physiology, and in amyotrophic lateral sclerosis and frontotemporal degeneration.


    Organizational Affiliation

    Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. jimhurley@berkeley.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
WD repeat-containing protein 41C459Homo sapiensMutation(s): 0 
Gene Names: WDR41MSTP048
Find proteins for Q9HAD4 (Homo sapiens)
Explore Q9HAD4 
Go to UniProtKB:  Q9HAD4
NIH Common Fund Data Resources
PHAROS  Q9HAD4
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide exchange C9orf72A481Homo sapiensMutation(s): 0 
Gene Names: C9orf72
Find proteins for Q96LT7 (Homo sapiens)
Explore Q96LT7 
Go to UniProtKB:  Q96LT7
NIH Common Fund Data Resources
PHAROS  Q96LT7
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide exchange protein SMCR8B937Homo sapiensMutation(s): 0 
Gene Names: SMCR8
Find proteins for Q8TEV9 (Homo sapiens)
Explore Q8TEV9 
Go to UniProtKB:  Q8TEV9
NIH Common Fund Data Resources
PHAROS  Q8TEV9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-12-01 
  • Released Date: 2020-09-02 
  • Deposition Author(s): Su, M.Y., Hurley, J.H.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesR01GM111730
Department of Defense (DOD, United States)United StatesW81XWH2010086

Revision History 

  • Version 1.0: 2020-09-02
    Type: Initial release
  • Version 1.1: 2020-09-09
    Changes: Database references
  • Version 1.2: 2020-09-23
    Changes: Database references