1S0P

Structure of the N-Terminal Domain of the Adenylyl Cyclase-Associated Protein (CAP) from Dictyostelium discoideum.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.260 

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This is version 1.2 of the entry. See complete history


Literature

STRUCTURE OF THE N-TERMINAL DOMAIN OF THE ADENYLYL CYCLASE-ASSOCIATED PROTEIN (CAP) FROM DICTYOSTELIUM DISCOIDEUM

Ksiazek, D.Brandstetter, H.Israel, L.Bourenkov, G.P.Katchalova, G.Janssen, K.P.Bartunik, H.D.Noegel, A.A.Schleicher, M.Holak, T.A.

(2003) Structure 11: 1171-1178

  • DOI: 10.1016/s0969-2126(03)00180-1
  • Primary Citation of Related Structures:  
    1S0P

  • PubMed Abstract: 
  • Cyclase-associated proteins (CAPs) are widely distributed and highly conserved proteins that regulate actin remodeling in response to cellular signals. The N termini of CAPs play a role in Ras signaling and bind adenylyl cyclase; the C termini bind to G-actin and thereby alter the dynamic rearrangements of the microfilament system ...

    Cyclase-associated proteins (CAPs) are widely distributed and highly conserved proteins that regulate actin remodeling in response to cellular signals. The N termini of CAPs play a role in Ras signaling and bind adenylyl cyclase; the C termini bind to G-actin and thereby alter the dynamic rearrangements of the microfilament system. We report here the X-ray structure of the core of the N-terminal domain of the CAP from Dictyostelium discoideum, which comprises residues 51-226, determined by a combination of single isomorphous replacement with anomalous scattering (SIRAS). The overall structure of this fragment is an alpha helix bundle composed of six antiparallel helices. Results from gel filtration and crosslinking experiments for CAP(1-226), CAP(255-464), and the full-length protein, together with the CAP N-terminal domain structure and the recently determined CAP C-terminal domain structure, provide evidence that the functional structure of CAP is multimeric.


    Organizational Affiliation

    Max-Planck Institut für Biochemie, 82152 Martinsried, Germany.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Adenylyl cyclase-associated proteinA, B176Dictyostelium discoideumMutation(s): 0 
Gene Names: capDDB_G0288769
UniProt
Find proteins for P54654 (Dictyostelium discoideum)
Explore P54654 
Go to UniProtKB:  P54654
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download Ideal Coordinates CCD File 
C [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.260 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.52α = 97.42
b = 42.13β = 105.09
c = 53.74γ = 97.15
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-01-27
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance