Table 2.

Web sites for the design of effective siRNAs (based on [24] with modifications).

Source	URL
Dharmacon	www.dharmacon.com/sidesign/
Hannon Lab	katahdin.cshl.org:9331/homepage/siRNA/RNAi.cgi?type=siRNA
Integrated DNA Technologies	scitools.idtdna.com/RNAi
Sonnhammer Lab	sisearch.cgb.ki.se
Invitrogen	rnaidesigner.invitrogen.com/sirna
McManus Lab
Qiagen	http://www1.qiagen.com/Products/GeneSilencing/CustomSiRna/SiRnaDesigner.aspx
Sfold Algorithm	http://sfold.wadsworth.org/index.pl
Whitehead Institute	http://Jura.wi.mit.edu/siRNAext
MWG-Biotech	http://www.mwg-biotech.com/html/s_synthetic_acids/s_sirna_design.shtml