4AKR

Crystal Structure of the cytoplasmic actin capping protein Cap32_34 from Dictyostelium discoideum


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.226 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Conservation and Divergence between Cytoplasmic and Muscle-Specific Actin Capping Proteins: Insights from the Crystal Structure of Cytoplasmic CAP32/34 from Dictyostelium Discoideum.

Eckert, C.Goretzki, A.Faberova, M.Kollmar, M.

(2012) BMC Struct Biol 12: 12

  • DOI: 10.1186/1472-6807-12-12
  • Primary Citation of Related Structures:  
    4AKR

  • PubMed Abstract: 
  • Capping protein (CP), also known as CapZ in muscle cells and Cap32/34 in Dictyostelium discoideum, plays a major role in regulating actin filament dynamics. CP is a ubiquitously expressed heterodimer comprising an α- and β-subunit. It tightly binds to the fast growing end of actin filaments, thereby functioning as a "cap" by blocking the addition and loss of actin subunits ...

    Capping protein (CP), also known as CapZ in muscle cells and Cap32/34 in Dictyostelium discoideum, plays a major role in regulating actin filament dynamics. CP is a ubiquitously expressed heterodimer comprising an α- and β-subunit. It tightly binds to the fast growing end of actin filaments, thereby functioning as a "cap" by blocking the addition and loss of actin subunits. Vertebrates contain two somatic variants of CP, one being primarily found at the cell periphery of non-muscle tissues while the other is mainly localized at the Z-discs of skeletal muscles.


    Organizational Affiliation

    Abteilung NMR basierte Strukturbiologie, Max-Planck-Institut für Biophysikalische Chemie, Am Fassberg 11, D-37077, Göttingen, Germany.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
F-ACTIN-CAPPING PROTEIN SUBUNIT ALPHAA, C281Dictyostelium discoideum AX2Mutation(s): 0 
UniProt
Find proteins for P13022 (Dictyostelium discoideum)
Explore P13022 
Go to UniProtKB:  P13022
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP13022
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
F-ACTIN-CAPPING PROTEIN SUBUNIT BETAB, D290Dictyostelium discoideum AX2Mutation(s): 0 
UniProt
Find proteins for P13021 (Dictyostelium discoideum)
Explore P13021 
Go to UniProtKB:  P13021
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP13021
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.226 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 124.46α = 90
b = 124.46β = 90
c = 77.5γ = 90
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XSCALEdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-07-04
    Type: Initial release