1PRQ

ACANTHAMOEBA CASTELLANII PROFILIN IA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.141 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal packing induces a conformational change in profilin-I from Acanthamoeba castellanii.

Liu, S.Fedorov, A.A.Pollard, T.D.Lattman, E.E.Almo, S.C.Magnus, K.A.

(1998) J.Struct.Biol. 123: 22-29

  • DOI: 10.1006/jsbi.1998.4009

  • PubMed Abstract: 
  • Profilin-I from Acanthamoeba castellanii is a 13-kDa protein that binds actin and poly-l-proline. The native protein has been crystallized in two different but closely related forms. The second form proved more amenable to three-dimensional structura ...

    Profilin-I from Acanthamoeba castellanii is a 13-kDa protein that binds actin and poly-l-proline. The native protein has been crystallized in two different but closely related forms. The second form proved more amenable to three-dimensional structural determination using heavy-atom isomorphous methods to obtain crystallographic phase information. We used the second crystal structure as a test molecule in the molecular replacement procedure to determine the structure of the first crystal form of profilin-I. More residues participate in crystal lattice contacts in the first crystal form than in the second. The two crystal forms differ significantly in the C-terminal helix that interacts with actin and in the loop preceding this helix. Coordinates of some main chain atoms here differ by about 1.0 A, and side chain atoms differ by more than 2.0 A.


    Related Citations: 
    • Purification, Characterization and Crystallization of Acanthamoeba Profilin Expressed in Escherichia Coli
      Almo, S.C.,Pollard, T.D.,Way, M.,Lattman, E.E.
      (1994) J.Mol.Biol. 236: 950
    • X-Ray Structures of Isoforms of the Actin-Binding Protein Profilin that Differ in Their Affinity for Phosphatidylinositol Phosphates
      Fedorov, A.A.,Magnus, K.A.,Graupe, M.H.,Lattman, E.E.,Pollard, T.D.,Almo, S.C.
      (1994) Proc.Natl.Acad.Sci.USA 91: 8636
    • Structure of Actin Binding Proteins: Insights About Function at Atomic Resolution
      Pollard, T.D.,Almo, S.,Quirk, S.,Vinson, V.,Lattman, E.E.
      (1994) Annu.Rev.Cell Biol. 10: 207
    • The Molecular Basis for Allergen Cross-Reactivity: Crystal Structure and Ige-Epitope Mapping of Birch Pollen Profilin
      Fedorov, A.A.,Ball, T.,Mahoney, N.M.,Valenta, R.,Almo, S.C.
      (1997) Structure 5: 33


    Organizational Affiliation

    Department of Biochemistry, Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio, 44106-4935, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROFILIN IA
A
125Acanthamoeba castellaniiN/A
Find proteins for P68696 (Acanthamoeba castellanii)
Go to UniProtKB:  P68696
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.141 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 91.090α = 90.00
b = 37.400β = 109.60
c = 34.700γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
PROFFTrefinement
XSCALEdata scaling
X-PLORphasing
X-PLORrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-12-24
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other