... between the DBD of one protein and an extra-DBDsequence of another (Hassler and Richmond, 2001); and IRF-2/PIP (IRF-2) and Spi-1/PU.1 (Spi-1) associate by bothmutual DBD and extra-DBD interactions ... 157–161.Chuang, T.H. and Ulevitch, R.J. (2000). Cloning and characteriza-tion of a sub-family of human toll-like receptors: hTLR7, hTLR8 and hTLR9. Eur Cytokine Netw 11, 372–378.Cooke, G.S. and Hill, ... Finger, HTH, bHLH and bZIP) collectively consti-tute between 75 and 96 per cent of the factors and oneclass, the C2H2 zinc fingers, represents more than half ofall factor types (Lander et al.,...