Thank you so much for your pointer to TFBS module link. Very useful indeed.
We don't even need password to access the TRANSFAC database! I wonder why this module isn't in CPAN.
Actually the task I intend to do is as follows:
Extract all the transcription factors (TFBS) for fruitfly (D. Melanogaster).
Identify all the coregulated genes of each TFBS found above.
Finally, extract the the sequence from -450 upstream to 50 downstream region of each coregulated genes found.
Do you have any experience doing this similar kind of thing with this module? Perhaps you can advice how can this be done.