Experiment Testing virus region 8 (VR8) mutant cross-species compatible Adeno Associated Viruses (ccAAVs) in mice. Experiment Condition AAV9 GFP Assay Description: Native fluorescence was quantified using Image J. For each animal, 6 images were taken from 2 sections and used to calculate corrected total cell fluorescence using the formula: Integrated Density – (Area of selected image X Mean fluorescence of background readings). Tissue Measured: heart Measurement Type: Delivery Efficiency Record ID 15000000377 Editor Delivery System Delivery System Subtype Guide Vector AAV9-GFP ; Model Species Mouse Model Name C57BL/6 Application Method intravenous Application Site Dosage 5e13 vg/kg Injection Frequency 1X Injection Rate Injection Volume 200 microliters Days post injection 4 weeks Editor Format AAV vector encoded Antidote Id Antidote Description Measured Values Samples Size: 3   Replicate Result (Delivery Efficiency) Measurement Units: Corrected Total Fluorescence Mean 636060484.26  1 467141532.522222  2 314373673.111111  3 1126666247.15556

Representative image of AAV9 GFP in heart