hDesmin-SaCas9 AAV (Serotype 9)

hDesmin-SaCas9 AAV (serotype 9) is an advanced tool in the field of genetic engineering and molecular biology, primarily for gene editing applications. These pre-made AAV particles express the Staphylococcus aureus Cas9 (SaCas9) protein driven by the hDesmin promoter. SaCas9 is a smaller ortholog of the commonly used Streptococcus pyogenes CRISPR-associated protein 9 (Cas9), and its compact size gives it a significant advantage in gene editing technologies. This property makes it easier to package within the limited capacity of AAV vectors.

Adeno-associated virus (AAV) serotype 9 is known for its unique transduction capabilities. It exhibits strong tropism for a variety of tissues, including heart, skeletal muscle, and liver, making it particularly suitable for targeting these tissues in both basic research and therapeutic fields. The hDesmin promoter refers to the regulatory region of the human desmin gene, which controls the transcription of the gene into RNA, ultimately leading to protein synthesis. Desmin, a protein encoded by the DES gene, is an important intermediate filament in muscle cells and plays a vital role in maintaining the structural integrity and function of muscle tissue. By combining the precise gene editing ability of SaCas9 with the muscle-targeting properties of the hDesmin promoter and AAV9, this tool provides an efficient approach to explore and potentially correct muscle-specific genetic abnormalities.