Sequence alignment of HasS and antisigma proteins.

<p>HasS_CTD residues involved in the interaction with the signaling domain are in red and their conserved equivalent in blue and highlighted. * represents conserved hydrophobic residues. Sequence numbering and secondary structure annotations are according to HasS_CTD. HasS_SM: HasS of <i>Serratia marcescens</i>; HasS_PS: HasS of <i>Pseudomonas synxantha</i>; HasS_PF: HasS of <i>Pseudomonas. fluorescens</i>; HasS_PP: HasS of <i>Pseudomonas. protegens</i>, FecR_EC: FecR of <i>E. coli</i>; FecR_PC: FecR of <i>Pectobacterium carotovorum</i>; FecR_PA: FecR of <i>Pectobacterium atrosepticum</i>; FecR_PW: FecR of <i>Pectobacterium wasabiae</i>; FecR_PF: FecR of <i>Pseudomonas fluorescens</i>; FecR_PE: FecR like of <i>Pseudomonas entomophila</i>; FecR_Pae: FecR like of <i>Pseudomonas aeruginosa</i>; FecR_PS: FecR of <i>Pseudomonas synxantha</i>; PupR_PP: PupR of <i>Pseudomonas putida</i>; RhuR_BA: RhuR of <i>Bordetella avium</i>.