1HLU

STRUCTURE OF BOVINE BETA-ACTIN-PROFILIN COMPLEX WITH ACTIN BOUND ATP PHOSPHATES SOLVENT ACCESSIBLE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The structure of an open state of beta-actin at 2.65 A resolution.

Chik, J.K.Lindberg, U.Schutt, C.E.

(1996) J.Mol.Biol. 263: 607-623

  • DOI: 10.1006/jmbi.1996.0602

  • PubMed Abstract: 
  • The structure of an "open state" of crystalline profilin:beta-actin has been solved to 2.65 A by X-ray crystallography. The open-state crystals, in 1.8 M potassium phosphate, have an expanded unit cell dimension in the c direction of 185.7 A compared ...

    The structure of an "open state" of crystalline profilin:beta-actin has been solved to 2.65 A by X-ray crystallography. The open-state crystals, in 1.8 M potassium phosphate, have an expanded unit cell dimension in the c direction of 185.7 A compared with 171.9 A in the previously solved ammonium sulphate-stabilized "tight-state" structure. The unit cell change between the open and the tight states is accompanied by large subdomain movements in actin. Furthermore, the nucleotide in the open state is significantly more exposed to solvent, and local conformational changes in the hydrophobic pocket surrounding cysteine 374 occur during the transition to the tight state. Significant changes were observed at the N terminus and in the DNase-I binding loop. Neither the structure of profilin nor its contact with beta-actin are affected by the changes in the unit cell. Applying osmotic pressure to profilin:beta-actin crystals brings about a collapse of the unit cell comparable with that seen in the open to tight-state transition, enabling an estimate of the work required to cause this transformation of beta-actin in the crystals. The slight difference in energy between the open and collapsed states explains the extreme sensitivity of profilin:beta-actin crystals to changes in chemical and thermal environment.


    Related Citations: 
    • Crystallization and Structure Determination of Bovine Profilin at 2.0 A Resolution
      Cedergren-Zeppezauer, E.S.,Goonesekere, N.C.,Rozycki, M.D.,Myslik, J.C.,Dauter, Z.,Lindberg, U.,Schutt, C.E.
      (1994) J.Mol.Biol. 240: 459
    • The Structure of Crystalline Profilin-Beta-Actin
      Schutt, C.E.,Myslik, J.C.,Rozycki, M.D.,Goonesekere, N.C.,Lindberg, U.
      (1993) Nature 365: 810
    • Molecular Packing in Profilin: Actin Crystals and its Implications
      Schutt, C.E.,Lindberg, U.,Myslik, J.,Strauss, N.
      (1989) J.Mol.Biol. 209: 735


    Organizational Affiliation

    Department of Chemistry, Princeton University, NJ 08544, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BETA-ACTIN
A
375Bos taurusGene Names: ACTB
Find proteins for P60712 (Bos taurus)
Go to Gene View: ACTB
Go to UniProtKB:  P60712
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROFILIN
P
140Bos taurusGene Names: PFN1
Find proteins for P02584 (Bos taurus)
Go to Gene View: PFN1
Go to UniProtKB:  P02584
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
HIC
Query on HIC
A
L-PEPTIDE LINKINGC7 H11 N3 O2HIS
ACE
Query on ACE
A, P
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 38.140α = 90.00
b = 72.240β = 90.00
c = 185.700γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
DENZOdata reduction
SCALEPACKdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-15
    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