Adaptation of an enzyme to regulatory function: structure of Bacillus subtilis PyrR, a pyr RNA-binding attenuation protein and uracil phosphoribosyltransferase.
Tomchick, D.R., Turner, R.J., Switzer, R.L., Smith, J.L.(1998) Structure 6: 337-350
- PubMed: 9551555 
- DOI: 10.1016/s0969-2126(98)00036-7
- Primary Citation of Related Structures:  
1A3C, 1A4X - PubMed Abstract: 
The expression of pyrimidine nucleotide biosynthetic (pyr) genes in Bacillus subtilis is regulated by transcriptional attenuation. The PyrR attenuation protein binds to specific sites in pyr mRNA, allowing the formation of downstream terminator struc ...