Zn/Co binding to homodimeric CzrA de-represses transcription of the
czr (cobalt zinc resistance) operon in
Staphylococcus aureus. Essentially complete backbone and stereospecific methyl group resonance assignments for apo-, Zn
2 and a 42 kDa apo–CzrA–DNA complex are presented.
Keywords Metal sensor -
czr O/P - Transcriptional repressor - Winged helix - DNA binding - Allosteric regulation