3FM0

Crystal structure of WD40 protein Ciao1

• PDB DOI: https://doi.org/10.2210/pdb3FM0/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-12-19 Released: 2009-02-10 
• Deposition Author(s): Dong, A., Ravichandran, M., Crombet, L., Cossar, D., Edwards, A.M., Arrowsmith, C.H., Weigelt, J., Bountra, C., Bochkarev, A., Min, J., Ouyang, H., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.196 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 

Literature

Structure and function of WD40 domain proteins.

Xu, C., Min, J.

(2011) Protein Cell 2: 202-214

• PubMed: 21468892 
• DOI: https://doi.org/10.1007/s13238-011-1018-1
• Primary Citation of Related Structures:  
  3E0C, 3FM0, 3GFC, 3I2N, 3OW8


• PubMed Abstract: 
  

  The WD40 domain exhibits a β-propeller architecture, often comprising seven blades. The WD40 domain is one of the most abundant domains and also among the top interacting domains in eukaryotic genomes. In this review, we will discuss the identification, definition and architecture of the WD40 domains. WD40 domain proteins are involved in a large variety of cellular processes, in which WD40 domains function as a protein-protein or protein-DNA interaction platform. WD40 domain mediates molecular recognition events mainly through the smaller top surface, but also through the bottom surface and sides. So far, no WD40 domain has been found to display enzymatic activity. We will also discuss the different binding modes exhibited by the large versatile family of WD40 domain proteins. In the last part of this review, we will discuss how post-translational modifications are recognized by WD40 domain proteins.

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Organizational Affiliation: 

Structural Genomics Consortium, University of Toronto, 101 College St., Toronto, Ontario, Canada.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 38.8 kDa 
• Atom Count: 2,935 
• Modelled Residue Count: 328 
• Deposited Residue Count: 345 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein CIAO1	A	345	Homo sapiens	Mutation(s): 0  Gene Names: CIAO1, WDR39
UniProt & NIH Common Fund Data Resources
Find proteins for O76071 (Homo sapiens) Explore O76071  Go to UniProtKB:  O76071
PHAROS:  O76071 GTEx:  ENSG00000144021

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.196 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.682	α = 90
b = 74.64	β = 105.05
c = 49.481	γ = 90

Software Package:

Software Name	Purpose
HKL-3000	data collection
PHASER	phasing
REFMAC	refinement
Coot	model building
HKL-3000	data reduction
HKL-3000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-02-10 
Deposition Author(s): Dong, A., Ravichandran, M., Crombet, L., Cossar, D., Edwards, A.M., Arrowsmith, C.H., Weigelt, J., Bountra, C., Bochkarev, A., Min, J., Ouyang, H., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2009-02-10
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Refinement description