Volume 1, Number 1, 99-101, DOI: 10.1007/s12104-007-9027-y

Resonance assignments of the metal sensor CzrA in the apo-, Zn2- and DNA-bound (42 kDa) states

Alphonse I. Arunkumar, Mario A. Pennella, Xiangming Kong and David P. Giedroc

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Abstract

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-, Zn2 and a 42 kDa apo–CzrA–DNA complex are presented.

Keywords  Metal sensor -  czr O/P - Transcriptional repressor - Winged helix - DNA binding - Allosteric regulation

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