BLOCK-iT™ RNAi Designer

The easiest way to design effective RNAi molecules for great results
See also:
BLOCK-iT™ RNAi Express: Simplified online ordering of pre-designed and validated Stealth Select RNAi™ siRNA.
Synthetics for in vivo RNAi
PlateSelect™: Order made-on-demand RNAi in customizable plate format at 1nmole scale!
 Target Design Options:  Stealth RNAi™ siRNA siRNA miR RNAi shRNA siRNA to Stealth RNAi™ siRNA siRNA to shRNA
Find out more about miR RNAi, the next generation in vector-based RNAi.     How to Order
Step 1: Enter an accession number or provide a nucleotide sequence
Accession number:
Nucleotide sequence: Enter only A, C, G, T, and U. See the online Help for additional information
Step 2: If you entered an accession number in Step 1, select regions for target design
Open reading frame (ORF)
5' UTR
3' UTR
Step 3: Choose database for Blast
  NOTE: BLAST is used to compare input sequence with sequences in the database to find unique regions against which to design RNAi targets. The databases contain representative gene sequences for that species. Blast databases were updated on May 01, 2008 and the design output reflects the most up-to-date designs.
Step 4: Choose minimum and maximum G/C percentage
Minimum G/C percentage: Maximum G/C percentage:  
Step 5: Click "RNAi Design" to design your miR RNAi molecules (for cloning into Invitrogen's pcDNA™6.2-GW/miR and pcDNA™6.2-GW/EmGFP-miR vectors)
Guarantee: The BLOCK-iT™ RNAi Designer uses an optimized, proprietary algorithm to design miRNA sequences with 100% homology to their target, so that upon processing their activity will result in cleavage of that target. The BLOCK-iT™ RNAi Designer is such an effective tool for the design of miRNAs that if you order oligos corresponding to two miRNAs designed by the BLOCK-iT™ RNAi Designer, we guarantee that at least one will give greater than 70% knockdown of target RNA, given that transfection efficiency in your experiment is at least 80%.
How to Order: You must have an online account with Invitrogen to order custom oligos. After your oligos have been designed, you must enter a valid user name and password to send them to the ordering system. If you do not already have an account, click user registration or contact your local representative to set up an account.
If you already know your RNAi oligo sequence: Order oligos online at Order Custom Primers or by e-mail/Fax.