AAV pCAG-FLEX-EGFP-WPRE
(Plasmid #51502)

• Purpose: Can be used to generate AAV virus that will express EGFP in the presence of Cre
• Depositing Lab: Hongkui Zeng
• Publication: Oh et al Nature. 2014 Apr 10;508(7495):207-14. doi: 10.1038/nature13186. Epub 2014 Apr 2.

Backbone

• Vector backbone: pAAV-MCS
• Backbone manufacturer: Stratagene
• Total vector size (bp): 6566
• Modifications to backbone: A fragment containing the pCAG promoter-FLEX-EGFP-WPRE was swapped in to replace the CMV promoter-MCS-hGHpA sequence. Total insert size including the two ITRs is 3969 bp.
• Vector type: AAV

Growth in Bacteria

• Bacterial Resistance(s): Ampicillin, 100 μg/mL
• Growth Temperature: 37°C
• Growth Strain(s): NEB Stable
• Copy number: Unknown

Gene/Insert

• Gene/Insert name: EGFP
• Insert Size (bp): 720
• Promoter: CAG

Cloning Information

• Cloning method: Restriction Enzyme
• 5′ cloning site: Not1 (not destroyed)
• 3′ cloning site: Not1 (not destroyed)
• 5′ sequencing primer: none
• 3′ sequencing primer: none

Resource Information

• Articles Citing this Plasmid:
  • 60 References

Terms and Licenses

• Academic/Nonprofit Terms:
  • UBMTA
• Industry Terms:
  • Not Available to Industry

Depositor Comments

NOTE: There are 2 loxP sites on the 5' end of the insert. The Addgene map only depicts one, but this is due to a deficiency in our mapping algorithm.

Information for AAV1 (Catalog # 51502-AAV1)

Purpose

Ready-to-use AAV1 particles produced from AAV pCAG-FLEX-EGFP-WPRE (#51502). In addition to the viral particles, you will also receive purified AAV pCAG-FLEX-EGFP-WPRE plasmid DNA.

CAG-driven, Cre dependent EGFP expression control. These AAV preparations are suitable purity for injection into animals.

Delivery

• Volume: 100 µL
• Titer: ≥ 1×10¹³ vg/mL
• Pricing: $375 USD for preparation of 100 µL virus + $30 USD for plasmid.
• Storage: Store at -80℃. Thaw just before use and keep on ice.
• Shipment: Viral particles are shipped frozen on dry ice. Plasmid DNA (≥ 200ng) will also be included in the shipment.

Viral Production & Use

• Packaging Plasmids: encode adenoviral helper sequences and AAV rep gene, AAV1 cap gene
• Buffer: PBS + 0.001% Poloxamer 188
• Serotype: AAV1
• Purification: Iodixanol gradient ultracentrifugation
• Reporter Gene: EGFP (Cre-dependent)

Biosafety

Requestor is responsible for compliance with their institution's biosafety regulations. Lentivirus is generally considered BSL-2. AAV is generally considered BSL-1, but may require BSL-2 handling depending on the insert. Biosafety Guide

Terms and Licenses

• Academic/Nonprofit Terms:
  • Terms of Use for Viral Vectors
• Industry Terms:
  • Not Available to Industry

Viral Quality Control

Quality Control:

• Addgene ensures high quality viral vectors by optimizing and standardizing production protocols and performing rigorous quality control (QC) (see a list of our QC assays). The specific QC assays performed varies for each viral lot. To learn which specific QC assays were performed on your lot, please contact us.
• Titer: the exact titer of your sample will be reported on the tube. The titer you see listed on this page is the guaranteed minimum titer. See how titers are measured.

Please note that this vector has a higher level of recombination than our other FLEX vectors (higher than 0.8% recombination referenced below). We are making it available because it is still useful to some scientists, but understand that you may see higher levels of off-target expression in the absence of Cre.

Visit our viral production page for more information.

Addgene Comments

Using FLEX vectors in vivo: LoxP sites in FLEX plasmids are known to recombine during DNA amplification and viral vector production, which may result in a minority of Cre-activated (i.e., "flipped") viral vectors. Addgene typically finds that this occurs in 0.1-0.8% of viral particles. This can lead to a small number of cells exhibiting Cre-independent transgene expression in vivo. To address this, it is necessary to optimize the injection volume and viral titer to find the optimal AAV dosage required for Cre-dependent transgene expression and function in vivo. This may include reducing the viral particle dosage in order to reduce the likelihood of Cre-independent expression.

Data submitted about 51502-AAV1 by requesting scientist(s):

• Data 1: Mouse, Brain parenchyma

Information for AAV2 (Catalog # 51502-AAV2)

Purpose

Ready-to-use AAV2 particles produced from AAV pCAG-FLEX-EGFP-WPRE (#51502). In addition to the viral particles, you will also receive purified AAV pCAG-FLEX-EGFP-WPRE plasmid DNA.

CAG-driven, Cre dependent EGFP expression control. These AAV preparations are suitable purity for injection into animals.

Delivery

• Volume: 100 µL
• Titer: ≥ 7×10¹² vg/mL
• Pricing: $375 USD for preparation of 100 µL virus + $30 USD for plasmid.
• Storage: Store at -80℃. Thaw just before use and keep on ice.
• Shipment: Viral particles are shipped frozen on dry ice. Plasmid DNA (≥ 200ng) will also be included in the shipment.

Viral Production & Use

• Packaging Plasmids: encode adenoviral helper sequences and AAV rep gene, AAV2 cap gene
• Buffer: PBS + 0.001% Poloxamer 188
• Serotype: AAV2
• Purification: Iodixanol gradient ultracentrifugation
• Reporter Gene: EGFP (Cre-dependent)

Biosafety

Requestor is responsible for compliance with their institution's biosafety regulations. Lentivirus is generally considered BSL-2. AAV is generally considered BSL-1, but may require BSL-2 handling depending on the insert. Biosafety Guide

Terms and Licenses

• Academic/Nonprofit Terms:
  • Terms of Use for Viral Vectors
• Industry Terms:
  • Not Available to Industry

Viral Quality Control

Quality Control:

• Addgene ensures high quality viral vectors by optimizing and standardizing production protocols and performing rigorous quality control (QC) (see a list of our QC assays). The specific QC assays performed varies for each viral lot. To learn which specific QC assays were performed on your lot, please contact us.
• Titer: the exact titer of your sample will be reported on the tube. The titer you see listed on this page is the guaranteed minimum titer. See how titers are measured.

Please note that this vector has a higher level of recombination than our other FLEX vectors (higher than 0.8% recombination referenced below). We are making it available because it is still useful to some scientists, but understand that you may see higher levels of off-target expression in the absence of Cre.

Visit our viral production page for more information.

Addgene Comments

Using FLEX vectors in vivo: LoxP sites in FLEX plasmids are known to recombine during DNA amplification and viral vector production, which may result in a minority of Cre-activated (i.e., "flipped") viral vectors. Addgene typically finds that this occurs in 0.1-0.8% of viral particles. This can lead to a small number of cells exhibiting Cre-independent transgene expression in vivo. To address this, it is necessary to optimize the injection volume and viral titer to find the optimal AAV dosage required for Cre-dependent transgene expression and function in vivo. This may include reducing the viral particle dosage in order to reduce the likelihood of Cre-independent expression.

Information for AAV5 (Catalog # 51502-AAV5)

Purpose

Ready-to-use AAV5 particles produced from AAV pCAG-FLEX-EGFP-WPRE (#51502). In addition to the viral particles, you will also receive purified AAV pCAG-FLEX-EGFP-WPRE plasmid DNA.

CAG-driven, Cre dependent EGFP expression control. These AAV preparations are suitable purity for injection into animals.

Delivery

• Volume: 100 µL
• Titer: ≥ 7×10¹² vg/mL
• Pricing: $375 USD for preparation of 100 µL virus + $30 USD for plasmid.
• Storage: Store at -80℃. Thaw just before use and keep on ice.
• Shipment: Viral particles are shipped frozen on dry ice. Plasmid DNA (≥ 200ng) will also be included in the shipment.

Viral Production & Use

• Packaging Plasmids: encode adenoviral helper sequences and AAV rep gene, AAV5 cap gene
• Buffer: PBS + 0.001% Poloxamer 188 + 200 mM NaCl
• Serotype: AAV5
• Purification: Iodixanol gradient ultracentrifugation
• Reporter Gene: EGFP (Cre-dependent)

Biosafety

Requestor is responsible for compliance with their institution's biosafety regulations. Lentivirus is generally considered BSL-2. AAV is generally considered BSL-1, but may require BSL-2 handling depending on the insert. Biosafety Guide

Terms and Licenses

• Academic/Nonprofit Terms:
  • Terms of Use for Viral Vectors
• Industry Terms:
  • Not Available to Industry

Viral Quality Control

Quality Control:

• Addgene ensures high quality viral vectors by optimizing and standardizing production protocols and performing rigorous quality control (QC) (see a list of our QC assays). The specific QC assays performed varies for each viral lot. To learn which specific QC assays were performed on your lot, please contact us.
• Titer: the exact titer of your sample will be reported on the tube. The titer you see listed on this page is the guaranteed minimum titer. See how titers are measured.

Please note that this vector has a higher level of recombination than our other FLEX vectors (higher than 0.8% recombination referenced below). We are making it available because it is still useful to some scientists, but understand that you may see higher levels of off-target expression in the absence of Cre.

Visit our viral production page for more information.

Addgene Comments

Using FLEX vectors in vivo: LoxP sites in FLEX plasmids are known to recombine during DNA amplification and viral vector production, which may result in a minority of Cre-activated (i.e., "flipped") viral vectors. Addgene typically finds that this occurs in 0.1-0.8% of viral particles. This can lead to a small number of cells exhibiting Cre-independent transgene expression in vivo. To address this, it is necessary to optimize the injection volume and viral titer to find the optimal AAV dosage required for Cre-dependent transgene expression and function in vivo. This may include reducing the viral particle dosage in order to reduce the likelihood of Cre-independent expression.

Information for AAV8 (Catalog # 51502-AAV8)

Purpose

Ready-to-use AAV8 particles produced from AAV pCAG-FLEX-EGFP-WPRE (#51502). In addition to the viral particles, you will also receive purified AAV pCAG-FLEX-EGFP-WPRE plasmid DNA.

CAG-driven, Cre-dependent EGFP expression control. These AAV preparations are suitable purity for injection into animals.

Delivery

• Volume: 100 µL
• Titer: ≥ 1×10¹³ vg/mL
• Pricing: $375 USD for preparation of 100 µL virus + $30 USD for plasmid.
• Storage: Store at -80℃. Thaw just before use and keep on ice.
• Shipment: Viral particles are shipped frozen on dry ice. Plasmid DNA (≥ 200ng) will also be included in the shipment.

Viral Production & Use

• Packaging Plasmids: encode adenoviral helper sequences and AAV rep gene, AAV8 cap gene
• Buffer: PBS + 0.001% Poloxamer 188
• Serotype: AAV8
• Purification: Iodixanol gradient ultracentrifugation
• Reporter Gene: EGFP (Cre-dependent)

Biosafety

Requestor is responsible for compliance with their institution's biosafety regulations. Lentivirus is generally considered BSL-2. AAV is generally considered BSL-1, but may require BSL-2 handling depending on the insert. Biosafety Guide

Terms and Licenses

• Academic/Nonprofit Terms:
  • Terms of Use for Viral Vectors
• Industry Terms:
  • Not Available to Industry

Viral Quality Control

Quality Control:

• Addgene ensures high quality viral vectors by optimizing and standardizing production protocols and performing rigorous quality control (QC) (see a list of our QC assays). The specific QC assays performed varies for each viral lot. To learn which specific QC assays were performed on your lot, please contact us.
• Titer: the exact titer of your sample will be reported on the tube. The titer you see listed on this page is the guaranteed minimum titer. See how titers are measured.

Please note that this vector has a higher level of recombination than our other FLEX vectors (higher than 0.8% recombination referenced below). We are making it available because it is still useful to some scientists, but understand that you may see higher levels of off-target expression in the absence of Cre.

Visit our viral production page for more information.

Addgene Comments

Using FLEX vectors in vivo: LoxP sites in FLEX plasmids are known to recombine during DNA amplification and viral vector production, which may result in a minority of Cre-activated (i.e., "flipped") viral vectors. Addgene typically finds that this occurs in 0.1-0.8% of viral particles. This can lead to a small number of cells exhibiting Cre-independent transgene expression in vivo. To address this, it is necessary to optimize the injection volume and viral titer to find the optimal AAV dosage required for Cre-dependent transgene expression and function in vivo. This may include reducing the viral particle dosage in order to reduce the likelihood of Cre-independent expression.

Information for AAV9 (Catalog # 51502-AAV9)

Purpose

Ready-to-use AAV9 particles produced from AAV pCAG-FLEX-EGFP-WPRE (#51502). In addition to the viral particles, you will also receive purified AAV pCAG-FLEX-EGFP-WPRE plasmid DNA.

CAG-driven, Cre dependent EGFP expression control. These AAV preparations are suitable purity for injection into animals.

Delivery

• Volume: 100 µL
• Titer: ≥ 1×10¹³ vg/mL
• Pricing: $375 USD for preparation of 100 µL virus + $30 USD for plasmid.
• Storage: Store at -80℃. Thaw just before use and keep on ice.
• Shipment: Viral particles are shipped frozen on dry ice. Plasmid DNA (≥ 200ng) will also be included in the shipment.

Viral Production & Use

• Packaging Plasmids: encode adenoviral helper sequences and AAV rep gene, AAV9 cap gene
• Buffer: PBS + 0.001% Poloxamer 188
• Serotype: AAV9
• Purification: Iodixanol gradient ultracentrifugation
• Reporter Gene: EGFP (Cre-dependent)

Biosafety

Requestor is responsible for compliance with their institution's biosafety regulations. Lentivirus is generally considered BSL-2. AAV is generally considered BSL-1, but may require BSL-2 handling depending on the insert. Biosafety Guide

Terms and Licenses

• Academic/Nonprofit Terms:
  • Ancillary Agreement for Penn Vectors
  • Terms of Use for Viral Vectors
• Industry Terms:
  • Not Available to Industry

Viral Quality Control

Quality Control:

• Addgene ensures high quality viral vectors by optimizing and standardizing production protocols and performing rigorous quality control (QC) (see a list of our QC assays). The specific QC assays performed varies for each viral lot. To learn which specific QC assays were performed on your lot, please contact us.
• Titer: the exact titer of your sample will be reported on the tube. The titer you see listed on this page is the guaranteed minimum titer. See how titers are measured.

Please note that this vector has a higher level of recombination than our other FLEX vectors (higher than 0.8% recombination referenced below). We are making it available because it is still useful to some scientists, but understand that you may see higher levels of off-target expression in the absence of Cre.

Visit our viral production page for more information.

Addgene Comments

Using FLEX vectors in vivo: LoxP sites in FLEX plasmids are known to recombine during DNA amplification and viral vector production, which may result in a minority of Cre-activated (i.e., "flipped") viral vectors. Addgene typically finds that this occurs in 0.1-0.8% of viral particles. This can lead to a small number of cells exhibiting Cre-independent transgene expression in vivo. To address this, it is necessary to optimize the injection volume and viral titer to find the optimal AAV dosage required for Cre-dependent transgene expression and function in vivo. This may include reducing the viral particle dosage in order to reduce the likelihood of Cre-independent expression.

Information for AAV Retrograde (Catalog # 51502-AAVrg)

Purpose

Ready-to-use AAV Retrograde particles produced from AAV pCAG-FLEX-EGFP-WPRE (#51502). In addition to the viral particles, you will also receive purified AAV pCAG-FLEX-EGFP-WPRE plasmid DNA.

CAG-driven, Cre-dependent EGFP expression control. These AAV were produced with a retrograde serotype, which permits retrograde access to projection neurons. These AAV preparations are suitable purity for injection into animals.

Delivery

• Volume: 100 µL
• Titer: ≥ 7×10¹² vg/mL
• Pricing: $375 USD for preparation of 100 µL virus + $30 USD for plasmid.
• Storage: Store at -80℃. Thaw just before use and keep on ice.
• Shipment: Viral particles are shipped frozen on dry ice. Plasmid DNA (≥ 200ng) will also be included in the shipment.

Viral Production & Use

• Packaging Plasmids: encode adenoviral helper sequences and AAV rep gene, AAV retrograde cap gene from rAAV2-retro helper (plasmid #81070)
• Buffer: PBS + 0.001% Poloxamer 188 + 200 mM NaCl
• Serotype: AAV retrograde (AAVrg)
• Purification: Iodixanol gradient ultracentrifugation
• Reporter Gene: EGFP (Cre-dependent)

Biosafety

Requestor is responsible for compliance with their institution's biosafety regulations. Lentivirus is generally considered BSL-2. AAV is generally considered BSL-1, but may require BSL-2 handling depending on the insert. Biosafety Guide

Terms and Licenses

• Academic/Nonprofit Terms:
  • Terms of Use for Viral Vectors
• Industry Terms:
  • Not Available to Industry

Viral Quality Control

Quality Control:

• Addgene ensures high quality viral vectors by optimizing and standardizing production protocols and performing rigorous quality control (QC) (see a list of our QC assays). The specific QC assays performed varies for each viral lot. To learn which specific QC assays were performed on your lot, please contact us.
• Titer: the exact titer of your sample will be reported on the tube. The titer you see listed on this page is the guaranteed minimum titer. See how titers are measured.

Please note that this vector has a higher level of recombination than our other FLEX vectors (higher than 0.8% recombination referenced below). We are making it available because it is still useful to some scientists, but understand that you may see higher levels of off-target expression in the absence of Cre.

Visit our viral production page for more information.

Addgene Comments

Retrograde functionality is dependent on high viral titers. Addgene recommends not diluting your AAV preps prior to use.

Using FLEX vectors in vivo: LoxP sites in FLEX plasmids are known to recombine during DNA amplification and viral vector production, which may result in a minority of Cre-activated (i.e., "flipped") viral vectors. Addgene typically finds that this occurs in 0.1-0.8% of viral particles. This can lead to a small number of cells exhibiting Cre-independent transgene expression in vivo. To address this, it is necessary to optimize the injection volume and viral titer to find the optimal AAV dosage required for Cre-dependent transgene expression and function in vivo. This may include reducing the viral particle dosage in order to reduce the likelihood of Cre-independent expression.