4OY4

calcium-free CaMPARI v0.2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.03 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Neural circuits. Labeling of active neural circuits in vivo with designed calcium integrators.

Fosque, B.F.Sun, Y.Dana, H.Yang, C.T.Ohyama, T.Tadross, M.R.Patel, R.Zlatic, M.Kim, D.S.Ahrens, M.B.Jayaraman, V.Looger, L.L.Schreiter, E.R.

(2015) Science 347: 755-760

  • DOI: https://doi.org/10.1126/science.1260922
  • Primary Citation of Related Structures:  
    4OY4

  • PubMed Abstract: 

    The identification of active neurons and circuits in vivo is a fundamental challenge in understanding the neural basis of behavior. Genetically encoded calcium (Ca(2+)) indicators (GECIs) enable quantitative monitoring of cellular-resolution activity during behavior. However, such indicators require online monitoring within a limited field of view. Alternatively, post hoc staining of immediate early genes (IEGs) indicates highly active cells within the entire brain, albeit with poor temporal resolution. We designed a fluorescent sensor, CaMPARI, that combines the genetic targetability and quantitative link to neural activity of GECIs with the permanent, large-scale labeling of IEGs, allowing a temporally precise "activity snapshot" of a large tissue volume. CaMPARI undergoes efficient and irreversible green-to-red conversion only when elevated intracellular Ca(2+) and experimenter-controlled illumination coincide. We demonstrate the utility of CaMPARI in freely moving larvae of zebrafish and flies, and in head-fixed mice and adult flies.


  • Organizational Affiliation

    Howard Hughes Medical Institute, Janelia Farm Research Campus, 19700 Helix Drive, Ashburn, VA 20147, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Chimera protein of Calmodulin, GPF-like protein EosFP, and Myosin light chain kinase413Rattus norvegicusLobophyllia hemprichiiGallus gallusMutation(s): 15 
Gene Names: Calm1CalmCamCam1Calm2Cam2CambCalm3Cam3Camc
UniProt
Find proteins for P11799 (Gallus gallus)
Explore P11799 
Go to UniProtKB:  P11799
Find proteins for P0DP29 (Rattus norvegicus)
Explore P0DP29 
Go to UniProtKB:  P0DP29
Find proteins for Q5S6Z9 (Lobophyllia hemprichii)
Explore Q5S6Z9 
Go to UniProtKB:  Q5S6Z9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP0DP29Q5S6Z9P11799
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.03 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.67α = 90
b = 68.67β = 90
c = 172.77γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-02-18
    Type: Initial release
  • Version 1.1: 2015-03-04
    Changes: Database references
  • Version 2.0: 2023-11-15
    Changes: Atomic model, Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy, Structure summary