A simple answer is" no,very unlikely". A complicate one is "who knows", find more evidence, form your own hypothesis and related aims; then, go ahead to test it. Even you get yeast 1 -hybrid as well as gel shift to show the binding, you still need to show such binding is biological meaningful.
>,而且 距离not 很近,but so far and also 构成回文序列。then B是A的下游基因的概率 will be higher than 距离很近 pls refer Boettiger AN et al. (2011). Transcriptional regulation: effects of promoter proximal pausing on speed, synchrony and reliability. PLoS Comput Biol. 7: e1001136. HTTP: //www.ncbi.nlm.nih.gov/pubmed/21589887 cited its Discusion > Speed, synchrony, degree of cell–to–cell variability, and robustness to environmental fluctuations are important features of transcription. They are properties of the system rather than of a particular gene, DNA regulatory sequence, or gene product taken in isolation, and optimizing them can, for instance, reduce the frequency of mis-patterning events that arise due to the inherently stochastic nature of gene expression. Understanding how these properties emerge, the mechanism by which they change, and the tradeoffs involved in optimizing them all require tractable models of transcription. -----