Members of this protein family share full-length homology with (but do not include) the acetoacetate metabolism regulatory protein AtoC (see SP|Q06065). These proteins have a Fis family DNA binding sequence (pfam02954), a response regulator receiver domain (pfam00072), and sigma-54 interaction domain (pfam00158). [Regulatory functions, DNA interactions]
Jiyao W et al.(2023). "The conserved domain database in 2023.",