Trp RNA-Binding Attenuation Protein: Modifying Symmetry and Stability of a Circular Oligomer.
Bayfield, O.W., Chen, C., Patterson, A.R., Luan, W., Smits, C., Gollnick, P., Antson, A.A.(2012) PLoS One 7: 44309
- PubMed: 22970197 
- DOI: https://doi.org/10.1371/journal.pone.0044309
- Primary Citation of Related Structures:  
4B27 - PubMed Abstract: 
Subunit number is amongst the most important structural parameters that determine size, symmetry and geometry of a circular protein oligomer. The L-tryptophan biosynthesis regulator, TRAP, present in several Bacilli, is a good model system for investigating determinants of the oligomeric state. A short segment of C-terminal residues defines whether TRAP forms an 11-mer or 12-mer assembly. To understand which oligomeric state is more stable, we examine the stability of several wild type and mutant TRAP proteins.
Organizational Affiliation: 
York Structural Biology Laboratory, Department of Chemistry, University of York, York, United Kingdom.