Figure 14. Comprehensive cross-species
models for reciprocal regulation of genes during retinal pigment
epithelium cell differentiation Models for regulatory regions,
including promoters and first introns, of differentiated and
undifferentiated gene clusters, were constructed as described in the
text. transcription response elements (TREs) inclusion criteria
indicated in these models are frequency ratio, evolutionary
conservation factor, and RT–PCR detection of mRNA expression. Symbols
representing TREs indicates passage of corresponding criteria filter,
as indicated in key, by TRE, filled boxes signify that a TRE has passed
all criteria filters.