3TU5

Actin complex with Gelsolin Segment 1 fused to Cobl segment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.165 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural States and dynamics of the d-loop in actin.

Durer, Z.A.Kudryashov, D.S.Sawaya, M.R.Altenbach, C.Hubbell, W.Reisler, E.

(2012) Biophys.J. 103: 930-939

  • DOI: 10.1016/j.bpj.2012.07.030

  • PubMed Abstract: 
  • Conformational changes induced by ATP hydrolysis on actin are involved in the regulation of complex actin networks. Previous structural and biochemical data implicate the DNase I binding loop (D-loop) of actin in such nucleotide-dependent changes. He ...

    Conformational changes induced by ATP hydrolysis on actin are involved in the regulation of complex actin networks. Previous structural and biochemical data implicate the DNase I binding loop (D-loop) of actin in such nucleotide-dependent changes. Here, we investigated the structural and conformational states of the D-loop (in solution) using cysteine scanning mutagenesis and site-directed labeling. The reactivity of D-loop cysteine mutants toward acrylodan and the mobility of spin labels on these mutants do not show patterns of an α-helical structure in monomeric and filamentous actin, irrespective of the bound nucleotide. Upon transition from monomeric to filamentous actin, acrylodan emission spectra and electron paramagnetic resonance line shapes of labeled mutants are blue-shifted and more immobilized, respectively, with the central residues (residues 43-47) showing the most drastic changes. Moreover, complex electron paramagnetic resonance line shapes of spin-labeled mutants suggest several conformational states of the D-loop. Together with a new (to our knowledge) actin crystal structure that reveals the D-loop in a unique hairpin conformation, our data suggest that the D-loop equilibrates in F-actin among different conformational states irrespective of the nucleotide state of actin.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA. zeynepdurer@ucla.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Actin, alpha skeletal muscle
A
377Oryctolagus cuniculusMutation(s): 0 
Gene Names: ACTA1 (ACTA)
Find proteins for P68135 (Oryctolagus cuniculus)
Go to Gene View: ACTA1
Go to UniProtKB:  P68135
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Gelsolin,Protein cordon-bleu,Thymosin beta-4
B
297Mus musculusHomo sapiens
This entity is chimeric
Mutation(s): 0 
Gene Names: Cobl (Kiaa0633), TMSB4X (TB4X, THYB4, TMSB4), GSN
Find proteins for Q5NBX1 (Mus musculus)
Go to UniProtKB:  Q5NBX1
Find proteins for P62328 (Homo sapiens)
Go to Gene View: TMSB4X
Go to UniProtKB:  P62328
Find proteins for P06396 (Homo sapiens)
Go to Gene View: GSN
Go to UniProtKB:  P06396
Small Molecules
Ligands 3 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, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
MPD
Query on MPD

Download SDF File 
Download CCD File 
A
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.165 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 71.184α = 90.00
b = 71.184β = 90.00
c = 222.244γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
BUSTER-TNTrefinement
BUSTERrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
SCALEPACKdata scaling
ADSCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-09-26
    Type: Initial release
  • Version 1.1: 2012-10-10
    Type: Database references
  • Version 1.2: 2017-06-07
    Type: Database references