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2012 Promega catalogue

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Cell Signaling<br />

RNA Interference<br />

GeneClip U1 Hairpin Cloning Systems<br />

Product Size Cat.# Price ($)<br />

GeneClip U1 Hairpin Cloning System—Basic 1 system C8750 553.00<br />

GeneClip U1 Hairpin Cloning System—<br />

Puromycin<br />

GeneClip U1 Hairpin Cloning System—<br />

1 system C8760 553.00<br />

Hygromycin<br />

GeneClip U1 Hairpin Cloning System—<br />

1 system C8770 553.00<br />

Neomycin 1 system C8780 553.00<br />

GeneClip U1 Hairpin Cloning System—hMGFP 1 system C8790 553.00<br />

For Research Use Only. Not for Use in Diagnostic Procedures.<br />

Description: The GeneClip U1 Hairpin Cloning Systems consist of linearized<br />

plasmids designed for fast and easy cloning of human target sequences to<br />

express short hairpin RNAs (shRNAs) in human cells. After transfection into<br />

human cells, in vivo expression of short interfering RNAs (siRNAs) can be<br />

effectively achieved from DNA constructs that contain a U1 RNA polymerase<br />

promoter and a siRNA template. The U1 promoter has been used successfully<br />

to generate hairpin siRNAs in vivo.<br />

To insert hairpin siRNAs into the pGeneClip Vectors, two short DNA<br />

oligonucleotides are annealed to form a DNA insert that contains the hairpin<br />

siRNA target sequence. After annealing, the oligonucleotides form overhangs<br />

that are compatible with the pGeneClip Vector ends and facilitate sticky-end<br />

ligation. Once transfected, RNA polymerase II transcribes the hairpin insert<br />

sequences to generate hairpin siRNAs in vivo.<br />

Features:<br />

• More Vector Choices: These systems provide vectors containing a<br />

variety of eukaryotic antibiotic-selectable markers for stable transfection or<br />

hMGFP for determination of transfection efficiency.<br />

• Time Savings: Vectors are supplied predigested to eliminate time-<br />

consuming vector preparation.<br />

• Convenience: Each system includes T4 DNA Ligase, 2X Rapid Ligation<br />

Buffer, Oligo Annealing Buffer and the pGeneClip Vector.<br />

• Easier Identification of Desired Clones: A PstI digestion quickly<br />

identifies positive recombinants.<br />

Storage Conditions: Store at –20°C.<br />

Protocol Part#<br />

GeneClip U1 Hairpin Cloning Systems Technical Manual TM256<br />

For complete and up-to-date product information visit: www.promega.com/catalog<br />

T7 RiboMAX Express RNAi System<br />

Product Size Cat.# Price ($)<br />

T7 RiboMAX Express RNAi System 50 × 20µl reactions P1700 738.00<br />

For Research Use Only. Not for Use in Diagnostic Procedures.<br />

Description: The T7 RiboMAX Express RNAi System is an in vitro<br />

transcription system designed for quickly producing milligram amounts of<br />

double-stranded RNA (dsRNA). The dsRNA is free of protein and other<br />

contaminants and is suitable for use in RNA interference (RNAi) in both<br />

mammalian and nonmammalian systems.<br />

The T7 RiboMAX Express RNAi System can be used to synthesize short<br />

interfering RNAs (siRNAs) of 21bp for use in mammalian systems. siRNAs<br />

synthesized in vitro have been demonstrated to be as effective as chemically<br />

synthesized siRNAs for inducing RNAi in mammalian cells.<br />

In addition, the T7 RiboMAX Express RNAi System can be used for the<br />

synthesis of dsRNA molecules of 200bp or greater, for use in nonmammalian<br />

systems. Two complementary RNA strands are synthesized from DNA template<br />

and annealed after the transcription reaction to form dsRNA. Any remaining<br />

single-stranded RNA and DNA template are removed with a nuclease<br />

digestion step. The dsRNA is then purified by isopropanol precipitation and can<br />

be introduced into the organism of choice for RNAi applications.<br />

Features:<br />

• Save Time: The T7 RiboMAX Express RNAi System produces milligram<br />

amounts of RNA in as little as 30 minutes.<br />

• Minimize Pipetting Errors: The four rNTPs and 2X transcription buffer<br />

have been combined, thus minimizing pipetting errors and setup time.<br />

Storage Conditions: Store all components at –20°C, except RNase A, which<br />

should be stored at 22–25°C after the initial thaw.<br />

Protocol Part#<br />

T7 RiboMAX Express RNAi System Technical Bulletin TB316<br />

% Decrease in Renilla Activity<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

Syn #1 IVT #1 Syn #2 IVT #2<br />

siRNAs<br />

Site 1<br />

Site 2<br />

Comparison of RNA interference induced by siRNAs synthesized<br />

chemically and by in vitro transcription. Two different target luciferase<br />

sequences were synthesized by in vitro transcription using the T7 RiboMAX<br />

Express RNAi System (IVT #1 and #2) and synthesized chemically (Syn #1<br />

and #2). After transfection using CodeBreaker Transfection Reagent, these<br />

siRNAs were evaluated for RNA interference in CHO cells stably expressing<br />

luciferase.<br />

4218MA06_3A<br />

289<br />

16<br />

RNA Analysis<br />

Section<br />

Contents<br />

Table of<br />

Contents

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