

(A) Alignment of the 206-bp GF monomer consensus sequence, the 206-bp reconstructed F-consensus monomer (Adey et al. 1994b), and the 212-bp TF monomer consensus (DeBerardinis and Kazazian 1999). The location of the consensus YY1-binding sequence is underlined. (B) GF element variants (labeled I– IV) with different patterns of 5′ UTR monomer organization. The fragment shown with horizontal stripes in each element is in the nonmonomeric 5′ UTR and is 82% identical to sequence in the F-consensus monomer. GF monomers are either full-length (204–207 bp) or truncated (∼64 bp). The monomeric regions of some clones (indicated by “?”) are too short to be certain of their variant group.











