Design and order libraries of synthetic reagents

  • Our online tool offers the flexibility to configure a library for your unique experimental needs - no quote required!
  • Choose synthetic reagents from our algorithm-optimized, predesigned products lines, including Dharmacon™ siRNA and microRNA, or Edit-R™ CRISPR sgRNA and crRNA
  • For vector-based reagents, please see instructions for designing Cherry-pick clone libraries
  • Add standard controls anywhere on the plate
  • 100% customizable plate layout

Build a library now

When Horizon pre-defined RNAi Screening Libraries don't match your experimental requirements, you can make your own custom library with ease, speed and economy.

You are able to cherry-pick from our premier siRNA and microRNA product lines and Edit-R predesigned crRNA reagents for human and mouse reagents to create the ideal collection for your particular needs.

Here's how:
RNAi Screening Libraries
  1. Load gene identifiers for your desired products
    • NCBI Gene ID or Gene Symbol
    • miRBase mature name or Accession
    • Horizon product catalog numbers
  2. Review the results for accuracy and product availability
  3. Select the product lines and product formats to include on the plates
  4. Configure the library plates for quantity, controls, replicates and layout
  5. Add to cart and check out!
Use the Library Plater to order these products in 96- or 384-well plates
Product lines siRNA: ON-TARGETplus, siGENOME, Accell, or Lincode microRNA: miRIDIAN Mimics or Inhibitors crRNA: Edit-R crRNA (may not be combined with RNAi reagents in the same library)
Product formats siRNA: SMARTpool or up to 4 individual siRNAs microRNA: Hairpin Inhibitor or Mimic Learn more about RNAi Product Formats crRNA: Up to 5 individual crRNA per gene
Species Human or Mouse
Plate type 96 well siRNA/microRNA or crRNA plates; 20 well minimum 384-well siRNA/microRNA or crRNA plates; 40 well minimum
Quantity per well 0.1, 0.25, 0.5, 1 or 2 nmol (1 or 2 nmol per well only available for 96-well plates)
These options are available but cannot be ordered online. They require a custom quote
Labcyte Echo-qualified 384-well plates Part# PP-0200. LDV plates not available.
Which siRNA is right for you?

Horizon offers four complete pre-designed product lines across human, mouse and rat genomes. Use the table below to assist you in determining the right siRNA product line for your needs.

  Cost-effective, efficient silencing High specificity for reduced off-targets + efficient silencing Highly specific knockdown of long noncoding RNA (lncRNA) Target silencing in difficult-to-transfect cells
  siGENOME siRNA ON-TARGETplus siRNA Lincode siRNA Accell siRNA
Pre-designed for Human, Mouse and Rat protein-coding genes checkmark checkmark
Pre-designed for Human and Mouse long noncoding RNA (lncRNA)     checkmark  
Recommended for transfectable mammalian cells in culture checkmark checkmark checkmark  
Recommended for neuronal, suspension, primary and other difficult-to-transfect cells       checkmark
Recommended transfection reagent DharmaFECT transfection reagent DharmaFECT transfection reagent DharmaFECT transfection reagent None required
Available as SMARTpool reagent checkmark checkmark checkmark checkmark
Available as four individual siRNAs checkmark checkmark checkmark checkmark
Guaranteed knockdown by SMARTpool and 3 of 4 siRNAs checkmark checkmark    
Sense strand is modified to prevent interaction with RISC and favor antisense strand uptake Selective application when thermodynamic analysis indicates it necessary for favorable antisense RISC loading checkmark checkmark checkmark
Antisense strand seed region is modified to destabilize off-target activity and enhance target specificity   checkmark checkmark checkmark
Modifications to facilitate cellular uptake without separate transfection reagents       checkmark
Stabilizing modifications to prevent nuclease-mediated degradation       checkmark
Sequence information provided with purchase checkmark checkmark checkmark checkmark
  • SMARTpool siRNA reagent
    A mixture of 4 siRNA provided as a single reagent; providing advantages in both potency and specificity. siGENOME and ON-TARGETplus SMARTpool are guaranteed† to silence by 75% or better.
  • Individual siRNA
    Select 1, 2, 3 or 4 individual siRNAs† per gene.
  • microRNA Mimics and Hairpin Inhibitors
    Available for human and mouse microRNAs in miRBase v.21
  • Individual crRNAs
    Select up to 5 individual crRNAs per gene. May not be combined with RNAi products on the same plate.

Our siRNA knockdown guarantee:
siGENOME and ON-TARGETplus siRNA reagents (SMARTpool and three of four individual siRNAs) are guaranteed to silence target gene expression by at least 75% at the mRNA level when demonstrated to have been used under optimal delivery conditions (confirmed using validated positive control and measured at the mRNA level 24 to 48 hours after transfection using 100nM siRNA).

Note: Most siGENOME and ON-TARGETplus siRNA products are highly functional at 5 to 25nM working concentration.

  • Human siRNA Libraries
    Choose from three siRNA product lines, including two whole-genome collections, to find a SMARTpool or individual siRNA library suitable for your discovery efforts.
  • Mouse siRNA Libraries
    Select ON-TARGETplus for unsurpassed specificity. Select siGENOME libraries for the most up-to-date mouse siRNAs available for optimal gene target coverage.
  • Lincode siRNA Libraries
    Choose a collection of Human or Mouse siRNAs based on RefSeq lncRNA genes with NR_ Accession numbers.
  • miRIDIAN microRNA Libraries
    Mimic and Hairpin Inhibitor libraries are available for human, mouse, and rat microRNAs. Provided in 96-well plates for high-throughput phenotypic screening.