AAVnerGene AAV Capsid Library Construction Services
AAVnerGene provides specialized AAV capsid library construction services with two distinct library types based on our advanced ATHENA platforms. These services are designed to assist researchers in selecting the most efficient AAV capsid variants for their specific applications, whether they are established serotypes or novel capsid designs.
AAV Capsid Library(I) - ATHENA I Platform
The AAV Capsid Library(I) is built on our ATHENA I platform. This library is a collection of known AAV capsid variants, systematically organized to compare and select the best AAV serotypes or variants for specific applications. In this library, each capsid variant is linked to three different DNA barcoded genomes, all carrying the same reporter gene. The unique barcode is strategically placed between the coding sequence and the Poly-A signal. During AAV production, one capsid and its three corresponding barcode plasmids are co-transfected to produce a specific capsid AAV vector. All vectors are harvested, purified, and titered, either pooled or separately. Using Next-Generation Sequencing (NGS) targeting the barcodes (BCs), researchers can accurately assess which AAV capsid variant demonstrates optimal efficiency.
AAV Capsid Library(II) - ATHENA II Platform
The AAV Capsid Library(II), developed on our ATHENA II platform, is a random peptide insert library aimed at evolving novel AAV capsids with tissue-specific tropism. In this library, random peptide sequences are inserted into various sites of the AAV capsid protein. These peptides can modify the capsid's properties, such as tropism, transduction efficiency, and immunogenicity, potentially enhancing its utility for gene therapy applications. Through library screening, researchers can identify new capsid variants with improved characteristics and select the most suitable ones for their therapeutic needs.
Feature
AAV Capsid Library(I)
AAV Capsid Library(II)
Library Type
ATHENA I: Known AAV capsid collection library
ATHENA II: Random peptide insert library
Purpose
Evaluate different AAV capsids from known serotypes/variants
Create and evolve novel AAV capsids with specific tissue tropism
Complexity
Low (~1000 different AAV variants)
High (>1e9 variants)
Reporter
CAG-EGFP
CAG/P40-Cap
DNA Barcodes
One capsid corresponding to 3 different specific DNA barcodes
Random peptides themselves serve as barcodes
Production Condition
Triple-plasmid transfection as usual
Low copy number of library plasmid plus normal pHelper and pRep plasmid