rAAV Regulatory Elements

Recombinant adeno-associated virus (rAAV) vectors are widely used in gene therapy due to their safety, stable gene expression, and ability to transduce a variety of cell types. The efficiency and specificity of rAAV-based systems rely heavily on the regulatory elements embedded within the vector construct. These elements dictate transcription, translation, and gene expression levels, making them critical for therapeutic applications.

Key rAAV Regulatory Elements:
  • Inverted Terminal Repeats (ITRs):
    • Role: The ITRs, located at both ends of the rAAV genome, are crucial for replication, packaging, and integration of the vector DNA.
    • Application: They facilitate the formation of single-stranded DNA, the precursor for second-strand synthesis necessary for transgene expression.
  • Promoters:
    • Role: Promoters regulate the initiation of transcription. They can be:
      • Ubiquitous (e.g., CMV, EF1α): Drive expression in most cell types.
      • Tissue-specific (e.g., Syn1 for neurons): Enhance cell-type targeting and minimize off-target effects.
    • Application: Selection of promoters depends on the target tissue or disease model.
  • Polyadenylation (PolyA) Signals:
    • Role: Ensure stability of mRNA and efficient translation by signaling termination of transcription.
    • Application: Commonly used PolyA signals include SV40 or bGH PolyA for robust mRNA processing.
Applications of rAAV Regulatory Elements:
  • Gene Replacement Therapy:
    • Example: Delivering functional copies of genes in disorders like spinal muscular atrophy (SMA) or hemophilia.
  • Gene Silencing:
    • Usage of tissue-specific promoters for RNA interference or antisense oligonucleotides.
  • Oncolytic Therapies:
    • Leveraging tumor-specific promoters to selectively express cytotoxic genes in cancer cells.
  • CRISPR/Cas9 Delivery:
    • Utilizing rAAV vectors with precise regulatory elements to deliver genome-editing tools.
  • Neurological Diseases:
    • Targeting neural tissues using Syn1 or hGFAP promoters for disorders like Parkinson's disease or Huntington's disease.

rAAV regulatory elements are pivotal in designing safe, efficient, and targeted gene therapies. Their modular and tunable nature allows for tailored applications across various diseases, reinforcing their role in advancing modern medicine.

AffiAAV® rAAV-hSyn-Chronos-EGFP-WPRE-bGH polyA
CAT# AFG-BRV-1236
Size: 1 Unit
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AffiAAV® rAAV-CAG-DIO-oChIEF-mCherry-WPREs
CAT# AFG-BRV-1226
Size: 1 Unit
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AffiAAV® rAAV-EF1a-DIO-ChETA-EYFP-WPRE-hGH polyA
CAT# AFG-BRV-1206
Size: 1 Unit
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AffiAAV® rAAV-CaMKIIa-ChETA-EYFP-WPRE-hGH polyA
CAT# AFG-BRV-1204
Size: 1 Unit
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AffiAAV® rAAV-hSyn-ChETA-EGFP-WPRE-hGH polyA
CAT# AFG-BRV-1203
Size: 1 Unit
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AffiAAV® rAAV-EF1a-DO-hChR2(H134R)-mCherry-WPREs
CAT# AFG-BRV-1178
Size: 1 Unit
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AffiAAV® rAAV-TRE3g-DIO-hChR2(H134R)-YFP-WPREs
CAT# AFG-BRV-1176
Size: 1 Unit
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AffiAAV® rAAV-CHAT-DIO-hChR2(H134R)-EGFP-WPREs
CAT# AFG-BRV-1174
Size: 1 Unit
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AffiAAV® rAAV-D2-DIO-hChR2(H134R)-EYFP-WPREs
CAT# AFG-BRV-1172
Size: 1 Unit
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AffiAAV® rAAV-D2-DIO-hChR2(H134R)- EYFP -WPREs
CAT# AFG-BRV-1171
Size: 1 Unit
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AffiAAV® rAAV-D1-DIO-hChR2(H134R)-mCherry-WPREs
CAT# AFG-BRV-1170
Size: 1 Unit
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AffiAAV® rAAV-VGAT1-DIO-hChR2(H134R)-EYFP-WPREs
CAT# AFG-BRV-1167
Size: 1 Unit
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AffiAAV® rAAV-CAG-DIO-hChR2(H134R)-EYFP-WPREs
CAT# AFG-BRV-1155
Size: 1 Unit
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AffiAAV® rAAV-TPH2-hChR2(H134R)-mCherry-WPREs
CAT# AFG-BRV-1154
Size: 1 Unit
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AffiAAV® rAAV- Or5ar1-ChR2(H134R)-EYFP-WPREs
CAT# AFG-BRV-1150
Size: 1 Unit
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AffiAAV® rAAV-TPH2-hChR2(H134R)-EGFP-WPREs
CAT# AFG-BRV-1149
Size: 1 Unit
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AffiAAV® rAAV-TRPV1-hChR2(H134R)-EYFP-WPREs
CAT# AFG-BRV-1147
Size: 1 Unit
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AffiAAV® rAAV-VGLUT2-hChR2(H134R)-mCherry-WPREs
CAT# AFG-BRV-1138
Size: 1 Unit
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