PrecisionXTM Gene Tagging HR Targeting Vector (GFP-pA-LoxP-EF1α-RFP-T2A-Hygro-pA-LoxP-MCS)

Create a GFP fusion to any gene with this HR targeting vector—features an RFP marker and hygromycin selection as a removable selection cassette.

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GFP-Fusion HR Targeting Vector (GFP-pA-LoxP-EF1α-RFP-T2A-Hygro-pA-LoxP-MCS)

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GFP-Fusion HR Targeting Vector (GFP-pA-LoxP-EF1α-RFP-T2A-Hygro-pA-LoxP-MCS)

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10 µg
HR220PA-1
$ 856
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Overview

Tag any gene with GFP

Use the PrecisionXTM Gene Tagging HR Targeting Vector (GFP-pA-LoxP-EF1α-RFP-T2A-Hygro-pA-LoxP-MCS) to fuse GFP to any gene in the genome. Clone your homology arms into the two MCSs and use hygromycin selection and RFP-positive imaging to find integrants. After you’ve identified clones with your GFP-tagged gene, you can remove the selection cassette using the Cre-LoxP system (learn more about Cre-LoxP excision here).

PrecisionX Gene Tagging HR Targeting Vector (GFP-pA-LoxP-EF1α-RFP-T2A-Hygro-pA-LoxP-MCS)

Why use an HR targeting vector?

Even though gene knock-outs can result from DSBs caused by Cas9 alone, SBI recommends the use of HR targeting vectors (also called HR donor vectors) for more efficient and precise mutation. HR donors can supply elements for positive or negative selection ensuring easier identification of successful mutation events. In addition, HR donors can include up to 6-8 kb of open reading frame for gene knock-ins or tagging, and, when small mutations are included in either 5’ or 3’ homology arms, can make specific, targeted gene edits.

Choose the right HR Targeting Vector for your project

Cat. # Name Kit includes
ExoQuick or ExoQuick-TC SeraMir RNA columns and reagents SeraMir cDNA synthesis and amplification reagents 384-well plate miRNAs for human, mouse, or rat
RA800A-1 Complete SeraMir Exosome RNA Amplification Kit  
RA800TC-1 Complete SeraMir Exosome RNA Amplification Kit for Media and Urine  
RA806A-1 SeraMir Exosome RNA Purification Kit    
RA806TC-1 SeraMir Exosome RNA Purification Kit for Media and Urine    
RA808A-1 SeraMir Exosome RNA Purification Column Kit      
RA820A-1 Human Complete SeraMir Exosome RNA Amplification and Profiling Kit
RA820TC-1 Human Complete SeraMir Exosome RNA Amplification and Profiling Kit for Media and Urine
RA821A-1 Mouse Complete SeraMir Exosome RNA Amplification and Profiling Kit
RA821TC-1 Mouse Complete SeraMir Exosome RNA Amplification and Profiling Kit for Media and Urine
RA822A-1 Rat Complete SeraMir Exosome RNA Amplification and Profiling Kit
RA822TC-1 Rat Complete SeraMir Exosome RNA Amplification and Profiling Kit for Media and Urine

How It Works

At-a-glance—how to use an HR Targeting Vector to tag a gene

Using an HR Donor Vector and the CRISPR/Cas9 System to tag a gene

Figure 1. Tagging a gene using an HR Targeting Vector. Step 1: Cas9 creates a double-stranded break (DSB) in the genomic DNA at a site that is complimentary to the gRNA. Step 2: The DNA repair machinery is recruited to the DSB. In the presence of an HR Donor with homology to the region adjacent to the DSB (blue areas of the genomic and vector DNA) homologous recombination (HR) is favored over non-homologous end joining (NHEJ). The tag you’d like to fuse to a gene should lie outside of the two LoxP sites. Result: The HR event leads to insertion of the region of the HR Donor Vector between the two homology arms—your tag ends up fused your gene-of-interest and your selection cassette is integrated. To remove the selection cassette (leaving behind the tag and a single LoxP site), transiently express Cre recombinase.

Genome engineering with CRISPR/Cas9

For general guidance on using CRISPR/Cas9 technology for genome engineering, including the design of HR Targeting Vectors, take a look at our CRISPR/Cas9 tutorials as well as the following application notes:

CRISPR/Cas9 Gene Knock-Out Application Note (PDF) »
CRISPR/Cas9 Gene Editing Application Note (PDF) »
CRISPR/Cas9 Gene Tagging Application Note (PDF) »