6YEL

Stromal interaction molecule 1 coiled-coil 1 fragment


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 400 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Interhelical interactions within the STIM1 CC1 domain modulate CRAC channel activation.

Rathner, P.Fahrner, M.Cerofolini, L.Grabmayr, H.Horvath, F.Krobath, H.Gupta, A.Ravera, E.Fragai, M.Bechmann, M.Renger, T.Luchinat, C.Romanin, C.Muller, N.

(2021) Nat Chem Biol 17: 196-204

  • DOI: 10.1038/s41589-020-00672-8
  • Primary Citation of Related Structures:  
    6YEL

  • PubMed Abstract: 
  • The calcium release activated calcium channel is activated by the endoplasmic reticulum-resident calcium sensor protein STIM1. On activation, STIM1 C terminus changes from an inactive, tight to an active, extended conformation. A coiled-coil clamp involving the CC1 and CC3 domains is essential in controlling STIM1 activation, with CC1 as the key entity ...

    The calcium release activated calcium channel is activated by the endoplasmic reticulum-resident calcium sensor protein STIM1. On activation, STIM1 C terminus changes from an inactive, tight to an active, extended conformation. A coiled-coil clamp involving the CC1 and CC3 domains is essential in controlling STIM1 activation, with CC1 as the key entity. The nuclear magnetic resonance-derived solution structure of the CC1 domain represents a three-helix bundle stabilized by interhelical contacts, which are absent in the Stormorken disease-related STIM1 R304W mutant. Two interhelical sites between the CC1α 1 and CC1α 2 helices are key in controlling STIM1 activation, affecting the balance between tight and extended conformations. Nuclear magnetic resonance-directed mutations within these interhelical interactions restore the physiological, store-dependent activation behavior of the gain-of-function STIM1 R304W mutant. This study reveals the functional impact of interhelical interactions within the CC1 domain for modifying the CC1-CC3 clamp strength to control the activation of STIM1.


    Organizational Affiliation

    Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic. norbert.mueller@jku.at.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Stromal interaction molecule 1A115Homo sapiensMutation(s): 0 
Gene Names: STIM1GOK
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Calcium Ion-Selective
Protein: 
Stromal interaction molecule 1 (STIM1) coiled-coil 1 fragment
Find proteins for Q13586 (Homo sapiens)
Explore Q13586 
Go to UniProtKB:  Q13586
NIH Common Fund Data Resources
PHAROS:  Q13586
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 400 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 6YEL Olderado

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Austrian Science FundAustriaW1250
European Commission653706
European Regional Development FundEFRE RU2-EU-124/100-2010

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-02
    Type: Initial release
  • Version 1.1: 2020-11-18
    Changes: Database references
  • Version 1.2: 2021-02-03
    Changes: Database references