1AHQ

RECOMBINANT ACTOPHORIN

• PDB DOI: https://doi.org/10.2210/pdb1AHQ/pdb

• Classification: ACTIN BINDING PROTEIN
• Organism(s): Acanthamoeba castellanii
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 1997-04-10 Released: 1997-09-04 
• Deposition Author(s): Leonard, S.A., Gittis, A.G., Petrella, E.C., Pollard, T.D., Lattman, E.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.320 
• R-Value Work: 0.210 
• R-Value Observed: 0.210 

Literature

Crystal structure of the actin-binding protein actophorin from Acanthamoeba.

Leonard, S.A., Gittis, A.G., Petrella, E.C., Pollard, T.D., Lattman, E.E.

(1997) Nat Struct Biol 4: 369-373

• PubMed: 9145107 
• DOI: https://doi.org/10.1038/nsb0597-369
• Primary Citation of Related Structures:  
  1AHQ


• PubMed Abstract: 
  

  Actophorin is a member of the actin-depolymerizing factor/cofilin family. It severs actin filaments and sequesters actin monomers. The crystal structure of actophorin will help to elucidate actin-ADF/cofilin interactions.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 15.44 kDa 
• Atom Count: 1,124 
• Modelled Residue Count: 133 
• Deposited Residue Count: 137 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACTOPHORIN	A	137	Acanthamoeba castellanii	Mutation(s): 0
UniProt
Find proteins for P37167 (Acanthamoeba castellanii) Explore P37167  Go to UniProtKB:  P37167

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.320 
• R-Value Work: 0.210 
• R-Value Observed: 0.210 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.295	α = 90
b = 47.486	β = 90
c = 67.585	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-09-04 
Deposition Author(s): Leonard, S.A., Gittis, A.G., Petrella, E.C., Pollard, T.D., Lattman, E.E.

Revision History  

• Version 1.0: 1997-09-04
  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: 2024-02-07
  Changes: Data collection, Database references, Other