Mouse ON-TARGETplus siRNA Library - Phosphatase

siRNA designed and modified for greater specificity


An arrayed collection of siRNA reagents for RNAi screening, targeting mouse phosphatases. ON-TARGETplus siRNA is guaranteed to silence and is modified to reduce off-targets for fewer false positives.

With the Mouse ON-TARGETplus Phosphatases siRNA Library, researchers receive siRNAs targeting enzymes with known or predicted phosphatase activity. Phosphatases play key roles in many biological processes, including cell-cycle progression, replication, transcription, and RNA processing. Cells depend on phosphatases to maintain tight control over the activity of several metabolic enzymes and signal transducing factors.

The ON-TARGETplus siRNA designs and modifications reduce off-target effects while maintaining high-silencing potency for high-confidence screening results.

Highlights

  • Patented dual-strand ON-TARGETplus modification pattern on all siRNAs to reduce off-targets
    • Sense strand is modified to prevent interaction with RISC and favor antisense strand uptake
    • Antisense strand seed region is modified to destabilize off-target activity and enhance target specificity
  • Available as SMARTpool siRNA reagents or a Set of 4 siRNAs in 96-well plates
  • Guaranteed target gene knockdown (see Specifications tab)

Gene Targets

For a complete list of target genes in this siRNA Library, please contact Technical Support.

  
CategoryName
HazardousYes
Hazardous:No
Shelf Life:
Shipping ConditionAmbient
Shipping Condition:
Shipping Information
SpecificationName
SpecificationValue
Stability at Recommended Storage ConditionsAt least 12 months
Storage Condition-20 C
Storage Condition:

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 used under optimal delivery conditions (confirmed using validated positive control and measured at the mRNA level 24 to 48 hours after transfection using 100 nM siRNA).

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

False phenotypes due to off-targets are alleviated by ON-TARGETplus SMARTpool reagents while target gene knockdown is maintained

False phenotypes due to off-targets are alleviated by ON-TARGETplus SMARTpool reagents while target gene knockdown is maintained

False phenotypes due to off-targets are alleviated by ON-TARGETplus SMARTpool reagents while target gene knockdown is maintained

The unmodified SMARTpool improved the false phenotype considerably while the ON-TARGETplus SMARTpool significantly reduced off-target effects to produce a consistent phenotype. In collaboration with Kaylene Simpson, Laura Selfors, and Joan Brugge, Harvard Medical School.

ON-TARGETplus modifications reduce the overall number of off-targets, and pooling reduces them even further


ON-TARGETplus modifications reduce the overall number of off-targets, and pooling reduces them even further

ON-TARGETplus modifications reduce the overall number of off-targets, and pooling reduces them even further

ON-TARGETplus modifications reduce the overall number of off-targets, and pooling reduces them even further

Panels (A) and (B) are representative examples of off-target signatures with and without application of ON-TARGETplus modifications to (A) a single siRNA and (B) a SMARTpool reagent. Green bars indicate genes with 2-fold or more reduction of expression when treated with the indicated siRNA reagent.

The ON-TARGETplus modifications reduced the off-targets when compared to unmodified siRNA. Pooling of siRNA and the ON-TARGETplus modification pattern independently and in combination, provide significant reduction in off-target gene silencing.

Panel (C) represents quantitation of off-targets (down-regulated by 2-fold or more) induced by the indicated siRNA reagents targeting 10 different genes (4 siRNAs per gene or a single SMARTpool reagent). Off-targets were quantified using microarray analysis (Agilent), then compiled. Each shaded box represents the middle 50% of the data set. Horizontal line in box: Median value of the data set. Vertical bars: minimum and maximum data values.


References

  1. B. D. Parsons, A. Schindler, D. H. Evans, E. Foley, A direct phenotypic comparison of siRNA pools and multiple individual duplexes in a functional assay. PLoS One. 4(12), e8471 (2009).
  2. M. Jiang, R. Instrell, B. Saunders, H. Berven, M. Howell, Tales from an academic RNAi screening facility; FAQs. Brief Funct. Genomics. 10(4), 227-237 (2011). [doi: 10.1093/bfgp/elr016]

Citations

  1. T. Ratovitski, E. Chighladze, E. Waldron, R. R. Hirschhorn, C. A. Ross, Cysteine proteases bleomycin hydrolase and cathepsin Z mediate N-terminal proteolysis and toxicity of mutant huntingtin. J. Biol. Chem. 286(14), 12578-12589 (2011). [Human Proteases]