Convergent evolution of similar function in two structurally divergent enzymes.
Kuriyan, J., Krishna, T.S., Wong, L., Guenther, B., Pahler, A., Williams Jr., C.H., Model, P.(1991) Nature 352: 172-174
- PubMed: 2067578 
- DOI: 10.1038/352172a0
- Primary Citation of Related Structures:  
1TRB - PubMed Abstract: 
An example of two related enzymes that catalyse similar reactions but possess different active sites is provided by comparing the structure of Escherichia coli thioredoxin reductase with glutathione reductase. Both are dimeric enzymes that catalyse the reduction of disulphides by pyridine nucleotides through an enzyme disulphide and a flavin ...