Horizon offers useful web tools for designing and ordering custom siRNA and miRNA reagents, as well as custom screening libraries.

siDESIGN center

Design functional siRNA for nearly any species or gene.

Select your species and gene of interest and our siRNA design algorithm will generate recommendations for highly specific functional gene knockdown.

Custom siRNA

Order custom siRNA with dye labels or chemical modifications.

Input your siRNA sequence and easily select positions for mismatches, labels or nearly 100 different modifications.

Cherry-Pick library tool

Only screen the genes you need.

Build a custom library of predesigned synthetic siRNA, microRNA, or guide RNA reagents.

Custom miRNA

Order custom miRIDIAN microRNA.

Modify an existing microRNA mimic or inhibitor, target a novel microRNA, or request an Accell microRNA for special applications.

Variant-specific knockdown by siRNA

Learn how to target a specific transcript variant. 

Follow this step-by-step guide using the siDESIGN Center to create an isoform-specific siRNA.

Labeling multiple/specific oligo positions

Incorporate molecular probesat multiple/specific sites in RNA

This poster outlines a method to label internal and 3' positions, resulting in quality, full length modified oligoribonucleotides.