siRNA  DEsign
   Bioinformatics Department  -  CIPF  ||   Help  ||    ** UPDATED TO Ensembl 49 **
 
Select the Organism Database:      
 
Enter a list of:        
 
ORF target:    
 
Discard for design  nt after START codon
Discard for design  nt before STOP codon
 
Patterns:    
 
Custom (19nt to 23nt)
 
 
 
Pattern filtering:    
 
GC content:  -  %
CT content:  -  %
Less than  contigous Gs
Less than  contigous As
Less than  of the same nucleotide in a string
Variation up to   % in nucleotide composition
 Avoid A in position 3 [ NNAN20 ]
After nt  set to   the minimum number of G/Cs in the next 4 bases
After nt  set to   the minmum number of A/Ts in the next 4 bases
 Avoid SNPs and Indels
 Avoid exon boundaries
 Avoid repeat regions
 Filter oligos with less than  points of Reynolds et al. 2004 score
 Filter oligos with a classification lower than  based on Ui-Tei et al. 2004 classification
 Filter oligos with less than  points of Amarzguioui & Prydz 2004 score
 Filter oligos with less than  points based on Hsieh et al. 2004 paper
 Filter oligos with less than  points of Takasaki et al. 2004 score
 
BLAST filtering:    
 
Allow inespecific BLAST alignments with   or more non-identical bases (gap)
 BLAST alignments specific of Transcript
 
OUTPUT:    
 
Sort by: 
Remove first 2 nt at 5' on Sense and last 2 nt at 3' on Antisense
Remove first 2 nt at 5' on Sense and Antisense
Remove last 2 nt at 3' on Sense and Antisense
 
 
    
 
Reference: Santoyo, J., Vaquerizas, J.M. & Dopazo, J. 2005 Highly specific and accurate selection of siRNAs for high-throughput functional assays. Bioinformatics, 21(8), 1376-1382.
  use of this program is logged send comments to The Webmaster   -   last rev: 9 September 2008