Figure 4.

Relationships among core histone gene promoter sequences. Promoter sequences are related by comparisons of cis-regulatory motif vectors, as described in the text. Individual promoters are ordered by similarity along each axis. Pair-wise correlations between promoter-specific vectors are color coded according to the scale bar shown. The block color structure along the diagonal reveals clusters of related promoter sequences.

Mariño-Ramírez et al. Genome Biology 2006 7:R122   doi:10.1186/gb-2006-7-12-r122
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