We believe this site might serve you best:

United States

United States

Language: English

Promega's Cookie Policy

Our website uses functional cookies that do not collect any personal information or track your browsing activity. When you select your country, you agree that we can place these functional cookies on your device.

Our website does not fully support your browser.

We've detected that you are using an older version of Internet Explorer. Your commerce experience may be limited. Please update your browser to Internet Explorer 11 or above.

CloneWeaver® Workflow Purchasing Tool

Powering Your Cloning Workflow

Product selection has never been easier

Molecular Cloning is the process of producing recombinant DNA and transforming into host organisms to replicate and make more copies. Every cloning project is unique. Read More

Once you have designed the cloning scheme, gathering all of the required reagents to get you from construct to expression and analysis is not trivial. CloneWeaver helps you build a customized cloning "kit" with all of the items your cloning scheme requires. Purchase your selection instantly, save it or email it to a purchasing agent. Soon you'll have everything you require to create the construct you need.

Previous Next

Vectors: RNAi Change

Name Description Part Number
psiCHECK-1 and psiCHECK-2 Vectors Open/Close Add
Monitor changes in expression of a target gene fused to a reporter gene; decreases in luciferase activity correlate with RNAi
psiCHECK™-1 Vector is used to monitor RNAi effects in live cells
psiCHECK™-2 Vector designed for endpoint lytic assays

The psiCHECK-1 and psiCHECK-2 Vectors are designed to provide a quantitative and rapid approach for initial optimization of RNA interference (RNAi). The vectors enable monitoring of changes in expression of a target gene fused to a reporter gene. In both vectors Renilla luciferase is used as the primary reporter gene, and the gene of interest is cloned into a multiple cloning region located downstream of the Renilla translational stop codon. Initiation of the RNAi process by synthetic siRNAs toward a gene of interest results in cleavage and subsequent degradation of the fusion mRNA. Measuring decreases in Renilla activity provides a convenient way of monitoring the RNAi effect. In comparison with other fusion approaches (e.g., GFP or flag-tags), the Renilla luciferase approach offers more convenient and rapid quantitation with higher sensitivity. The psiCHECK-1 Vector is recommended for use in monitoring RNAi effects in live cells. The changes in Renilla luciferase activity are measured with the EnduRen Live Cell Substrate (Cat.# E6481), which allows continuous monitoring of intracellular Renilla luminescence. The psiCHECK-2 Vector contains a second reporter gene, firefly luciferase, and is designed for endpoint lytic assays. Introduction of firefly luciferase in the psiCHECK-2 Vector allows normalization of Renilla luciferase expression, achieving robust and reproducible results.

Visit Product Page »
pmirGLO Dual-Luciferase miRNA Target Expression Vector Open/Close Add
Reporter activity correlates with miRNA activity
Optimized luc2 reporter gene provides highest expression while the Renilla luciferase gene provides normalization
The moderate-strength PGK promoter provides more biologically relevant analysis not possible with strong promoters

The pmirGLO Vector is designed to quantitatively evaluate microRNA (miRNA) activity by the insertion of miRNA target sites downstream or 3' of the firefly luciferase gene (luc2). Firefly luciferase is the primary reporter gene; reduced firefly luciferase expression indicates the binding of endogenous or introduced miRNAs to the cloned miRNA target sequence. This vector is based on Promega dual-luciferase technology, with luc2 used as the primary reporter to monitor mRNA regulation and Renilla luciferase (hRluc-neo) acting as a control reporter for normalization and selection.

Visit Product Page »
Your Cloning Selections
None Selected
None Selected
None Selected
None Selected
None Selected
None Selected


Your selections can be accessed anytime at the link you will receive via email:


To share your selections via email, complete the short form below: