Endoplasmic reticulum protein 29 (ERp29) C-terminal domain: Structure Determination from Backbone Amide Pseudocontact Shifts Generated by Double-histidine Cobalt Tags

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20000 
  • Conformers Submitted: 10 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Three-Dimensional Protein Structure Determination Using Pseudocontact Shifts of Backbone Amide Protons Generated by Double-Histidine Co2+-Binding Motifs at Multiple Sites.

Bahramzadeh, A.Huber, T.Otting, G.

(2019) Biochemistry 58: 3243-3250

  • DOI: https://doi.org/10.1021/acs.biochem.9b00404
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Pseudocontact shifts (PCSs) generated by paramagnetic metal ions contribute highly informative long-range structure restraints that can be measured in solution and are ideally suited to guide structure prediction algorithms in determining global protein folds. We recently demonstrated that PCSs, which are relatively small but of high quality, can be generated by a double-histidine (dHis) motif in an α-helix, which provides a well-defined binding site for a single Co 2+ ion. Here we show that PCSs of backbone amide protons generated by dHis-Co 2+ motifs positioned in four different α-helices of a protein deliver excellent restraints to determine the three-dimensional (3D) structure of a protein in a way akin to the global positioning system (GPS). We demonstrate the approach with GPS-Rosetta calculations of the 3D structure of the C-terminal domain of the chaperone ERp29 (ERp29-C). Despite the relatively small size of the PCSs generated by the dHis-Co 2+ motifs, the structure calculations converged readily. Generating PCSs by the dHis-Co 2+ motif thus presents an excellent alternative to the use of lanthanide tags.

  • Organizational Affiliation

    Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Endoplasmic reticulum resident protein 29106Rattus norvegicusMutation(s): 0 
Gene Names: Erp29
Find proteins for P52555 (Rattus norvegicus)
Explore P52555 
Go to UniProtKB:  P52555
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP52555
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20000 
  • Conformers Submitted: 10 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Australian Research Council (ARC)Australia--

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-24
    Type: Initial release
  • Version 1.1: 2019-07-31
    Changes: Data collection, Database references
  • Version 1.2: 2019-08-14
    Changes: Data collection, Database references
  • Version 1.3: 2020-01-01
    Changes: Author supporting evidence
  • Version 1.4: 2024-05-01
    Changes: Data collection, Database references