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Negative Selection Screens
MicroRNA processing pathway utilized for shRNAmir  
MicroRNA processing


shRNAmir libraries
for increased and specific knockdown

The Expression Arrest™ microRNA-adapted shRNA (shRNAmir) libraries were developed in collaboration with Greg Hannon (CSHL) and Steve Elledge (Harvard). shRNAmir triggers for mammalian RNAi are based on current knowledge of the endogenous microRNA biogenesis pathway. shRNAmir constructs are designed to mimic a natural microRNA primary transcript, enabling specific processing by the endogenous RNAi pathway and producing more effective knockdown (Silva et al 2005). Genome wide shRNAmir libraries incorporate several features aimed at increasing the efficiency and specificity of gene knockdown providing solutions for diverse RNAi applications. These include:

  • microRNA-30 adapted design for increased knockdown specificity and efficiency
  • Transient, stable and in vivo options for RNAi
  • Pre-cloned into retroviral and lentiviral vectors
  • Human and mouse genomes targeted
  • Guaranteed knockdown

Available shRNAmir libraries targeting the human and/or mouse whole genomes include:

Individual constructs, target gene sets, RNAintro starter kits, gene families/pathway sets, custom rearrays, whole genome libraries are available.

This product is covered by the following limited use licenses:
Limited Use License-shRNA technologies
Limited Use License-Tet Technology
Limited Use License-ddRNAi

TurboGFP and TurboRFP are covered by a Limited Use License from Evrogen.

References:
  1. Cleary, M et al (2004) "Production of complex nucleic acid libraries using highly parallel in situ oligonucleotide synthesis" Nature Methods Vol 1:3, 241-248. 
  2. Dickens RA et al (2005) "Probing tumor phenotypes using stable and regulated synthetic microRNA precursors" Nature Genetics Vol 37:11, 1289.
  3. Paddison, P et al (2004) "Cloning of short hairpin RNAs for gene knockdown in mammalian cells" Nature Methods Vol1:2, 163-167
  4. Silva J et al (2005) "Second-generation shRNA libraries covering the mouse and human genomes" Nature Genetics Vol 37:11, 1281-88 
  5. Stegmeier F et al (2005) "A lentiviral microRNA-based system for single-copy polymerase II-regulated RNA interference in mammalian cells" PNAS Vol 102:37; 13212-13217
  6. Shimada, Takashi, et. al, Development of Vectors Utilized for Gene Therapy for AIDS, AIDS 4, 1995


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