2DRK

Acanthamoeba myosin I SH3 domain bound to Acan125

• PDB DOI: https://doi.org/10.2210/pdb2DRK/pdb

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


• Deposited: 2006-06-09 Released: 2007-05-29 
• Deposition Author(s): Houdusse, A., Bahloul, A., Ostap, E.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.42 Å
• R-Value Free: 0.173 
• R-Value Work: 0.159 
• R-Value Observed: 0.159 

Starting Model: experimental

Literature

The crystal structure of the SH3 domain of Acanthamoeba myosin IB bound to Acan125

Houdusse, A., Bahloul, A., Ostap, E.M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 7.88 kDa 
• Atom Count: 636 
• Modelled Residue Count: 69 
• Deposited Residue Count: 69 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Myosin heavy chain IB	A	59	Acanthamoeba castellanii	Mutation(s): 0
UniProt
Find proteins for P19706 (Acanthamoeba castellanii) Explore P19706  Go to UniProtKB:  P19706

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
10-mer peptide from Myosin-I binding protein Acan125	B	10	N/A	Mutation(s): 0
UniProt
Find proteins for P90630 (Acanthamoeba castellanii) Explore P90630  Go to UniProtKB:  P90630

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	D [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	C [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.42 Å
• R-Value Free: 0.173 
• R-Value Work: 0.159 
• R-Value Observed: 0.159 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.701	α = 90
b = 37.362	β = 90
c = 43.836	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-05-29 
Deposition Author(s): Houdusse, A., Bahloul, A., Ostap, E.M.

Revision History  

• Version 1.0: 2007-05-29
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description