x1 = IkBa_mRNA
x2 = IkBa_cytoplasm
x3 = IkBa_nucleus
x4 = IkBaIKK
x5 = IkBaNFkB_cytoplasm
x6 = IkBaNFkB_nucleus
x7 = IkBaIKKNFkB
x8 = NFkB_cytoplasm
x9 = IKK
x10 = NFkB_nucleus
x11 = IkBbIKK
x12 = IkBbIKKNFkB
x13 = IkBbNFkB_nucleus
x14 = IkBbNFkB_cytoplasm
x15 = IkBb_nucleus
x16 = IkBb_cytoplasm
x17 = IkBb_mRNA
x18 = IkBe_mRNA
x19 = IkBe_cytoplasm
x20 = IkBe_nucleus
x21 = IkBeNFkB_cytoplasm
x22 = IkBeNFkB_nucleus
x23 = IkBeIKKNFkB
x24 = IkBeIKK