Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 7.48 kDa 
• Atom Count: 515 
• Modelled Residue Count: 68 
• Deposited Residue Count: 68 
• Unique protein chains: 1

1TL4

Solution structure of Cu(I) HAH1

• PDB DOI: 10.2210/pdb1TL4/pdb
• BMRB: 6266

• Classification: METAL TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2004-06-09 Released: 2004-10-26 
• Deposition Author(s): Anastassopoulou, I., Banci, L., Bertini, I., Cantini, F., Katsari, E., Rosato, A., Structural Proteomics in Europe (SPINE)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 400 
• Conformers Submitted: 30 
• Selection Criteria: target function 

Literature

Solution Structure of the Apo and Copper(I)-Loaded Human Metallochaperone HAH1.

Anastassopoulou, I., Banci, L., Bertini, I., Cantini, F., Katsari, E., Rosato, A.

(2004) Biochemistry 43: 13046-13053

• PubMed: 15476398 
• DOI: 10.1021/bi0487591
• Primary Citation of Related Structures:  
  1TL4, 1TL5


• PubMed Abstract: 
  

The human metallochaperone HAH1 has been produced in Escherichia coli with four additional amino acids at the C-terminus and characterized in solution by NMR spectroscopy, both with and without copper(I). The solution structure of the apo-HAH1 monomer has a root-mean-square-deviation (RMSD) of 0.50 A for the coordinates of the backbone atoms and 0.96 A for all heavy atoms. These values compare, respectively, with 0.45 and 0.95 A for copper(I)-HAH1. There are only minor structural rearrangements upon copper(I) binding. In particular, the variation of interatomic interactions around the metal-binding region is limited to a movement of Lys60 toward the metal site. The protein structures are similar to those obtained by X-ray crystallography in a variety of derivatives, with backbone RMSD values below 1 A. In the holoprotein, copper(I) is confirmed to be two coordinated. If these data are compared with those of orthologue proteins, we learn that HAH1 has a lower tendency to change coordination number from two to three. Such a switch in coordination is a key step in copper transfer.

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Organizational Affiliation: 

Institute of Physical Chemistry, NCSR Demokritos, 153 10 Aghia Paraskevi Attikis, Greece.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Copper transport protein ATOX1	A	68	Homo sapiens	Mutation(s): 0  Gene Names: ATOX1, HAH1
UniProt & NIH Common Fund Data Resources
Find proteins for O00244 (Homo sapiens) Explore O00244  Go to UniProtKB:  O00244
PHAROS:  O00244 GTEx:  ENSG00000177556

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 400 
• Conformers Submitted: 30 
• Selection Criteria: target function 
• OLDERADO: 1TL4 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-06-09 
• Released Date: 2004-10-26 
Deposition Author(s): Anastassopoulou, I., Banci, L., Bertini, I., Cantini, F., Katsari, E., Rosato, A., Structural Proteomics in Europe (SPINE)

Revision History  

• Version 1.0: 2004-10-26
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-02
  Changes: Data collection, Database references, Derived calculations