2GGP

Solution structure of the Atx1-Cu(I)-Ccc2a complex

• PDB DOI: https://doi.org/10.2210/pdb2GGP/pdb

• Classification: CHAPERONE, METAL TRANSPORT
• Organism(s): Saccharomyces cerevisiae
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-03-24 Released: 2006-08-08 
• Deposition Author(s): Banci, L., Bertini, I., Cantini, F., Felli, I.C., Gonnelli, L., Hadjiliadis, N., Pierattelli, R., Rosato, A., Voulgaris, P., Structural Proteomics in Europe (SPINE)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

The Atx1-Ccc2 complex is a metal-mediated protein-protein interaction.

Banci, L., Bertini, I., Cantini, F., Felli, I.C., Gonnelli, L., Hadjiliadis, N., Pierattelli, R., Rosato, A., Voulgaris, P.

(2006) Nat Chem Biol 2: 367-368

• PubMed: 16732294 
• DOI: https://doi.org/10.1038/nchembio797
• Primary Citation of Related Structures:  
  2GGP


• PubMed Abstract: 
  

  Cellular systems allow transition-metal ions to reach or leave the cell or intracellular locations through metal transfer between proteins. By coupling mutagenesis and advanced NMR experiments, we structurally characterized the adduct between the copper chaperone Atx1 and the first copper(I)-binding domain of the Ccc2 ATPase. Copper was required for the interaction. This study provides an understanding of metal-mediated protein-protein interactions in which the metal ion is essential for the weak, reversible interaction between the partners.

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Organizational Affiliation: 

Magnetic Resonance Center (CERM), University of Florence, Via L. Sacconi 6, 50019 Sesto Fiorentino, Italy.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 16.19 kDa 
• Atom Count: 1,121 
• Modelled Residue Count: 145 
• Deposited Residue Count: 145 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Metal homeostasis factor ATX1	A	73	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: ATX1
UniProt
Find proteins for P38636 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P38636  Go to UniProtKB:  P38636

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Probable copper-transporting ATPase	B	72	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: CCC2 EC: 3.6.3.4
UniProt
Find proteins for P38995 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P38995  Go to UniProtKB:  P38995

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-08-08 
Deposition Author(s): Banci, L., Bertini, I., Cantini, F., Felli, I.C., Gonnelli, L., Hadjiliadis, N., Pierattelli, R., Rosato, A., Voulgaris, P., Structural Proteomics in Europe (SPINE)

Revision History  

• Version 1.0: 2006-08-08
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-09
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-05-29
  Changes: Data collection