Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 60.81 kDa 
• Atom Count: 4192 
• Residue Count: 486 
• Unique protein chains: 3

2FF3

Crystal structure of Gelsolin domain 1:N-wasp V2 motif hybrid in complex with actin

• DOI: 10.2210/pdb2FF3/pdb

• Classification: STRUCTURAL PROTEIN/CONTRACTILE PROTEIN
• Organism(s): Homo sapiens, Oryctolagus cuniculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-12-19 Released: 2006-03-21 
• Deposition Author(s): Xue, B., Aguda, A.H., Robinson, R.C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.250 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 

Literature

The Structural Basis of Actin Interaction with Multiple WH2/beta-Thymosin Motif-Containing Proteins

Aguda, A.H., Xue, B., Irobi, E., Preat, T., Robinson, R.C.

(2006) Structure 14: 469-476

• PubMed: 16531231 
• DOI: 10.1016/j.str.2005.12.011
• Primary Citation of Related Structures:  
  2FF6, 2FF3


• PubMed Abstract: 
  

Participation of actin in cellular processes relies on the dynamics of filament assembly. Filament elongation is fed by monomeric actin in complex with either profilin or a Wiscott-Aldrich syndrome protein (WASP) homology domain 2 (WH2)/beta-thymosin (betaT) domain. WH2/betaT motif repetition (typified by ciboulot) or combination with nonrelated domains (as found in N-WASP) results in proteins that yield their actin to filament elongation. Here, we report the crystal structures of actin bound hybrid proteins, constructed between gelsolin and WH2/betaT domains from ciboulot or N-WASP. We observe the C-terminal half of ciboulot domain 2 bound to actin. In solution, we show that cibolout domains 2 and 3 bind to both G- and F-actin, and that whole ciboulot forms a complex with two actin monomers. In contrast, the analogous portion of N-WASP WH2 domain 2 is detached from actin, indicating that the C-terminal halves of the betaT and WH2 motifs are not functionally analogous.

---

Organizational Affiliation: 

Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala 751 23, Sweden.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Gelsolin	A	150	Homo sapiens	Mutation(s): 0  Gene Names: GSN
Find proteins for P06396 (Homo sapiens) Explore P06396  Go to UniProtKB:  P06396
NIH Common Fund Data Resources
PHAROS:  P06396 GTEx:  ENSG00000148180

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Neural Wiskott-Aldrich syndrome protein	C	15	Homo sapiens	Mutation(s): 0  Gene Names: WASL
Find proteins for O00401 (Homo sapiens) Explore O00401  Go to UniProtKB:  O00401
NIH Common Fund Data Resources
PHAROS:  O00401 GTEx:  ENSG00000106299

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Actin, alpha skeletal muscle	B	375	Oryctolagus cuniculus	Mutation(s): 0  Gene Names: ACTA1, ACTA
Find proteins for P68135 (Oryctolagus cuniculus) Explore P68135  Go to UniProtKB:  P68135

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	B	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
CA	A, B	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.250 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.996	α = 90
b = 69.347	β = 90
c = 179.868	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
CCP4	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-12-19 
• Released Date: 2006-03-21 
Deposition Author(s): Xue, B., Aguda, A.H., Robinson, R.C.

Revision History 

• Version 1.0: 2006-03-21
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance