The adeno-associated virus serotype 9 (AAV9)-delivered gene expression driven by the cardiac troponin T (Tnnt2) promoter is broadly considered to be cardiac-specific. However. in cases where low AAV expression is sufficient to trigger a profound biological effect in CRISPR/Cas9 gene editing. the ectopic AAV9-Tnnt2 expression and gene editing in the liver becomes non-negligible. https://toyscyclers.shop/product-category/toddler-tops/