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 
  • R-Value Observed: 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
  • Primary Citation of Related Structures:  
    1HLU

  • 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 with 171 ...

    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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-ACTINA375Bos taurusMutation(s): 1 
Gene Names: ACTB
UniProt
Find proteins for P60712 (Bos taurus)
Explore P60712 
Go to UniProtKB:  P60712
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP60712
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROFILINB [auth P]140Bos taurusMutation(s): 0 
Gene Names: PFN1
UniProt
Find proteins for P02584 (Bos taurus)
Explore P02584 
Go to UniProtKB:  P02584
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02584
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download Ideal Coordinates CCD File 
D [auth A]ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
CA
Query on CA

Download Ideal Coordinates CCD File 
C [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
HIC
Query on HIC
A L-PEPTIDE LINKINGC7 H11 N3 O2HIS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.14α = 90
b = 72.24β = 90
c = 185.7γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other