1ACF

ACANTHAMOEBA CASTELLANII PROFILIN IB


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

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: 8636-8640

  • Primary Citation of Related Structures:  2ACG

  • PubMed Abstract: 
  • We determined the structures of Acanthamoeba profilin I and profilin II by x-ray crystallography at resolutions of 2.0 and 2.8 A, respectively. The polypeptide folds and the actin-binding surfaces of the amoeba profilins are very similar to those of ...

    We determined the structures of Acanthamoeba profilin I and profilin II by x-ray crystallography at resolutions of 2.0 and 2.8 A, respectively. The polypeptide folds and the actin-binding surfaces of the amoeba profilins are very similar to those of bovine and human profilins. The electrostatic potential surfaces of the two Acanthamoeba isoforms differ. Two areas of high positive potential on the surface of profilin II are candidate binding sites for phosphatidylinositol phosphates. The proximity of these sites to the actin binding site provides an explanation for the competition between actin and lipids for binding profilin.


    Organizational Affiliation

    Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROFILIN I
A
125Acanthamoeba castellaniiN/A
Find proteins for Q95VF7 (Acanthamoeba castellanii)
Go to UniProtKB:  Q95VF7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.179 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 110.031α = 90.00
b = 31.631β = 111.38
c = 33.487γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
PROFFTrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-08-31
    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