Function
The apo- but not holo-form probably binds DNA (By similarity). Acts as a transcriptional regulator. Probably redox-responsive. Upon overproduction at least 10 other genes are up-regulated, among them are Rv1258c, Rv1988, Rv2301, Rv2416c, Rv2725c and whiB7 itself. Probably redox-responsive. The apo-form has been shown to act as a protein disulfide reductase.