2DRM

Acanthamoeba myosin I SH3 domain bound to Acan125

• PDB DOI: https://doi.org/10.2210/pdb2DRM/pdb

• Classification: CONTRACTILE PROTEIN
• Organism(s): Acanthamoeba
• 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: 1.35 Å
• R-Value Free: 0.206 
• R-Value Work: 0.186 
• R-Value Observed: 0.187 

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., Arold, S.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.8 kDa 
• Atom Count: 2,408 
• Modelled Residue Count: 267 
• Deposited Residue Count: 268 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acanthamoeba Myosin IB	A, B, C, D	58	Acanthamoeba	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
18-mer peptide from Acan125	E, F [auth G]	18	N/A	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	G [auth A], H [auth A], I [auth A], J [auth B], L [auth C], N [auth D], P [auth E], R [auth G]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	K [auth B], M [auth C], O [auth D], Q [auth E]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.35 Å
• R-Value Free: 0.206 
• R-Value Work: 0.186 
• R-Value Observed: 0.187 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 29.969	α = 90.28
b = 37.861	β = 90.11
c = 44.506	γ = 90.64

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
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: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description