Identification of Transcription factor using Matrix

[vadoue]

Hi,
I have a list of SNPs for which I would like to identified sites for transcription factor binding (using sequence around). I would like to use known motifs (for ex from TRANSFAC database) as well new matrix that are not included in public database. I have many different samples to analyse. Please could you help me to figure out what would be the best way/tools to do that?
I am very new in this domain ...
Thanks a lot all for your help

[john_nl]

You could use the tool described here:
http://meme.nbcr.net/meme/fimo-intro.html