Similarity index of ANK1-ANK7 of the ARD of murine IκB family members, BCL-3, IκBα, IκBβ, IκBϵ, IκBNS, p100, and p105. Bcl-3 residues 144–158 are shaded in black and a multiple sequence alignment of this section expanded below. Non-homologous/non-similar residues are indicated by black text on white background, conservative residues derived from a block of similar residues at a given position are black text on gray background, blocks of similar residues derived from a single conservative residue at a given position are white text on black background and weakly similar residues are underlined. The consensus sequence was determined using identical and conservative amino acids.