Pizer, L.I., Everett, R.D., Tedder, D.G., Elliott, M. and Litman, B.  (1991)  Nucleotides within both proximal and distal parts of the consensus sequence are important for specific DNA recognition by the herpes simplex virus regulatory protein ICP4.   Nucleic Acids Research, 19(3),  pp. 477-483.   (doi: 10.1093/nar/19.3.477)