crystal structure of the intermediate complex of the arginine repressor from Mycobacterium tuberculosis bound with its DNA operator reveals detailed mechanism of arginine repression.
Cherney, L.T., Cherney, M.M., Garen, C.R., James, M.N.(2010) J Mol Biol 399: 240-254
- PubMed: 20382162 
- DOI: 10.1016/j.jmb.2010.03.065
- Primary Citation of Related Structures:  
3LAJ, 3LAP - PubMed Abstract: 
The concentration of L-arginine in Mycobacterium tuberculosis (Mtb) and in many other bacteria is controlled by a transcriptional factor called the arginine repressor (ArgR). It regulates the transcription of the biosynthetic genes of the arginine operon by interacting with the approximately 16- to 20-bp ARG boxes in the promoter site of the operon ...