Solution structure of BOLA1 from Homo sapiens

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

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Mitochondrial Bol1 and Bol3 function as assembly factors for specific iron-sulfur proteins.

Uzarska, M.A.Nasta, V.Weiler, B.D.Spantgar, F.Ciofi-Baffoni, S.Saviello, M.R.Gonnelli, L.Muhlenhoff, U.Banci, L.Lill, R.

(2016) Elife 5

  • DOI: https://doi.org/10.7554/eLife.16673
  • Primary Citation of Related Structures:  
    2NCL, 5LCI

  • PubMed Abstract: 

    Assembly of mitochondrial iron-sulfur (Fe/S) proteins is a key process of cells, and defects cause many rare diseases. In the first phase of this pathway, ten Fe/S cluster (ISC) assembly components synthesize and insert [2Fe-2S] clusters. The second phase is dedicated to the assembly of [4Fe-4S] proteins, yet this part is poorly understood. Here, we characterize the BOLA family proteins Bol1 and Bol3 as specific mitochondrial ISC assembly factors that facilitate [4Fe-4S] cluster insertion into a subset of mitochondrial proteins such as lipoate synthase and succinate dehydrogenase. Bol1-Bol3 perform largely overlapping functions, yet cannot replace the ISC protein Nfu1 that also participates in this phase of Fe/S protein biogenesis. Bol1 and Bol3 form dimeric complexes with both monothiol glutaredoxin Grx5 and Nfu1. Complex formation differentially influences the stability of the Grx5-Bol-shared Fe/S clusters. Our findings provide the biochemical basis for explaining the pathological phenotypes of patients with mutations in BOLA3.

  • Organizational Affiliation

    Institut für Zytobiologie und Zytopathologie, Philipps-Universität, Marburg, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BolA-like protein 1123Homo sapiensMutation(s): 0 
Gene Names: BOLA1CGI-143
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y3E2 (Homo sapiens)
Explore Q9Y3E2 
Go to UniProtKB:  Q9Y3E2
GTEx:  ENSG00000178096 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y3E2
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-08-31
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Data collection
  • Version 1.2: 2019-10-30
    Changes: Data collection, Database references
  • Version 1.3: 2024-05-15
    Changes: Data collection, Database references