Crystal structure of photoinhibitable Rac1 containing C450A mutant LOV2 domain

Experimental Data Snapshot

  • Resolution: 2.60 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.206 

Starting Model: experimental
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Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


Engineering extrinsic disorder to control protein activity in living cells.

Dagliyan, O.Tarnawski, M.Chu, P.H.Shirvanyants, D.Schlichting, I.Dokholyan, N.V.Hahn, K.M.

(2016) Science 354: 1441-1444

  • DOI: https://doi.org/10.1126/science.aah3404
  • Primary Citation of Related Structures:  
    5HZH, 5HZI, 5HZJ, 5HZK

  • PubMed Abstract: 

    Optogenetic and chemogenetic control of proteins has revealed otherwise inaccessible facets of signaling dynamics. Here, we use light- or ligand-sensitive domains to modulate the structural disorder of diverse proteins, thereby generating robust allosteric switches. Sensory domains were inserted into nonconserved, surface-exposed loops that were tight and identified computationally as allosterically coupled to active sites. Allosteric switches introduced into motility signaling proteins (kinases, guanosine triphosphatases, and guanine exchange factors) controlled conversion between conformations closely resembling natural active and inactive states, as well as modulated the morphodynamics of living cells. Our results illustrate a broadly applicable approach to design physiological protein switches.

  • Organizational Affiliation

    Program in Molecular and Cellular Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ras-related C3 botulinum toxin substrate 1,NPH1-1,Ras-related C3 botulinum toxin substrate 1332Homo sapiensAvena sativaMutation(s): 2 
Gene Names: RAC1TC25MIG5NPH1-1
UniProt & NIH Common Fund Data Resources
Find proteins for P63000 (Homo sapiens)
Explore P63000 
Go to UniProtKB:  P63000
GTEx:  ENSG00000136238 
Find proteins for O49003 (Avena sativa)
Explore O49003 
Go to UniProtKB:  O49003
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP63000O49003
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.60 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.05α = 90
b = 74.27β = 94.62
c = 58.4γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-12-21
    Type: Initial release
  • Version 1.1: 2016-12-28
    Changes: Database references
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Derived calculations, Refinement description