The oxidized subunit B8 from human complex I adopts a thioredoxin fold.
Brockmann, C., Diehl, A., Rehbein, K., Strauss, H., Schmieder, P., Korn, B., Kuhne, R., Oschkinat, H.(2004) Structure 12: 1645-1654
- PubMed: 15341729 
- DOI: 10.1016/j.str.2004.06.021
- Primary Citation of Related Structures:  
1S3A - PubMed Abstract: 
Subunit B8 from ubiquinone oxidoreductase (complex I) (CI-B8) is one of several nuclear-encoded supernumerary subunits that are not present in bacterial complex I. Its solution structure shows a thioredoxin fold with highest similarities to the human thi ...