RELA primary protein sequence minus the first two amino acids of the porcine sequences. The Rel homology domain is underlined, the transactivation 2 domain is dashed underlined, and the transactivation 1 domain is double underlined. The nuclear localization signal (KRKR) is dotted underlined. The T448A, S485P, and S531P variations between the domestic pig and warthog are highlighted. SS, Sus scrofa; PA, Phacochoerus africanus; BB, Babyrousa babyrussa; HS, Homo sapiens (M62399).