2AQ5 | pdb_00002aq5

Crystal Structure of Murine Coronin-1

• PDB DOI: https://doi.org/10.2210/pdb2AQ5/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Mus musculus
• Expression System: Spodoptera frugiperda
• Mutation(s): Yes 


• Deposited: 2005-08-17 Released: 2005-12-06 
• Deposition Author(s): Appleton, B.A., Wu, P., Wiesmann, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 
  0.192 (Depositor), 0.190 (DCC) 
• R-Value Work: 
  0.158 (Depositor), 0.158 (DCC) 
• R-Value Observed: 
  0.160 (Depositor) 

Literature

The crystal structure of murine coronin-1: a regulator of actin cytoskeletal dynamics in lymphocytes.

Appleton, B.A., Wu, P., Wiesmann, C.

(2006) Structure 14: 87-96

• PubMed: 16407068 
• DOI: https://doi.org/10.1016/j.str.2005.09.013
• Primary Citation Related Structures: 
  2AQ5, 2B4E


• PubMed Abstract: 
  

  Mammalian coronin-1 is preferentially expressed in hematopoietic cells and plays a poorly understood role in the dynamic reorganization of the actin cytoskeleton. Sequence analysis of coronin-1 revealed five WD40 repeats that were predicted to form a beta propeller. They are followed by a 130 residue extension and a 30 residue leucine zipper domain that is responsible for multimerization of the protein. Here, we present the crystal structure of murine coronin-1 without the leucine zipper at 1.75 A resolution. Coronin-1 forms a seven-bladed beta propeller composed of the five predicted WD40 repeats and two additional blades that lack any homology to the canonical WD40 motif. The C-terminal extension adopts an extended conformation, packs tightly against the bottom surface of the propeller, and is likely to be required for the structural stability of the propeller. Analysis of charged and conserved surface residues delineate possible binding sites for F-actin on the beta propeller.

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Organizational Affiliation: 
• Department of Protein Engineering, Genentech, Inc., South San Francisco, California 94080, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 44.5 kDa 
• Atom Count: 3,524 
• Modeled Residue Count: 395 
• Deposited Residue Count: 402 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Coronin-1A	A	402	Mus musculus	Mutation(s): 5  Gene Names: Coro1a, Coro1
UniProt & NIH Common Fund Data Resources
Find proteins for O89053 (Mus musculus) Explore O89053  Go to UniProtKB:  O89053
IMPC:  MGI:1345961

Small Molecules

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CME	A	L-PEPTIDE LINKING	C5 H11 N O3 S2		CYS
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free:  0.192 (Depositor), 0.190 (DCC) 
• R-Value Work:  0.158 (Depositor), 0.158 (DCC) 
• R-Value Observed: 0.160 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.996	α = 90
b = 80.443	β = 90
c = 88.208	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-12-06 
Deposition Author(s): Appleton, B.A., Wu, P., Wiesmann, C.

Revision History  

• Version 1.0: 2005-12-06
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary