crystallization papers
The transcriptional regulator TraR from A. tumefaciens has been crystallized in complex with its activating molecule, the pheromone N-3-oxooctanoyl-L-homoserine lactone (AAI), and with its target DNA sequence, an 18-base pair DNA sequence called TraBox. A three-wavelength MAD data set, using seleno-L-methionine-substituted crystals, has been collected to a resolution of 3 Å.