MDHHHHHHSSGVDLGTENLYFQSASMDGGEALLREALSKASREVIEKIAWEVVPQLAETIIREELERLIKDRETQH
C-terminal helix of RomR protein of Myxococcus xanthus. The protein construct contains an additional 26 non-native amino acids at the N-terminus, including a polyhistidine tag (MDHHHHHHSSGVDLGTENLYFQSASM)