3K0I

Crystal structure of Cu(I)CusA

• PDB DOI: https://doi.org/10.2210/pdb3K0I/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMD


• Deposited: 2009-09-24 Released: 2010-10-13 
• Deposition Author(s): Su, C.-C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 4.12 Å
• R-Value Free: 
  0.308 (Depositor), 0.320 (DCC) 
• R-Value Work: 
  0.269 (Depositor), 0.270 (DCC) 
• R-Value Observed: 
  0.271 (Depositor) 

Literature

Crystal structure of CusA

Long, F., Su, C.-C., Routh, M.D., Rajashankar, K.R., Yu, E.W.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 115.96 kDa 
• Atom Count: 7,804 
• Modelled Residue Count: 1,015 
• Deposited Residue Count: 1,055 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cation efflux system protein cusA	A	1,055	Escherichia coli K-12	Mutation(s): 0  Gene Names: b0575, cusA, JW0564, ybdE Membrane Entity: Yes
UniProt
Find proteins for P38054 (Escherichia coli (strain K12)) Explore P38054  Go to UniProtKB:  P38054

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CU1	B [auth A], C [auth A]	COPPER (I) ION Cu VMQMZMRVKUZKQL-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 4.12 Å
• R-Value Free:  0.308 (Depositor), 0.320 (DCC) 
• R-Value Work:  0.269 (Depositor), 0.270 (DCC) 
• R-Value Observed: 0.271 (Depositor) 

Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 179.256	α = 90
b = 179.256	β = 90
c = 286.266	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-10-13 
Deposition Author(s): Su, C.-C.

Revision History  

• Version 1.0: 2010-10-13
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references, Derived calculations