Experiment AAV Tropism project Experiment Condition AAV9 males Assay Description: Cre activity was assessed by image quantification Tissue Measured: brain Measurement Type: Editing Efficiency Record ID 15000001978 Editor Delivery System AAV Delivery System Subtype Viral vector Guide Vector AAV9-ZsGreen-Cre; Model Species Mouse Model Name B6.Cg-Gt(ROSA)26Sor ^ tm9(CAG-tdTomato)Hze/J Sample Age 6 weeks Sample Sex Male Application Method intravenous Application Site systemic Dosage 1E12 GC/mouse Injection Frequency once Injection Rate Injection Volume 150 microliters Days post injection 28 days Editor Format Antidote Id Antidote Description Measured Values Samples Size: 4   Replicate Result (Editing Efficiency) Measurement Units: % cells tdTomato positive Mean 6.12  1 9.43  2 6.59  3 3.12  4 5.33  Measurement Units: GC/ug DNA Mean 35562.8  1 49306  2 42408  3 48201  4 25812  5 12087

AAV9 brain AAV serotypes delivering Cre recombinase were tested by intravenous delivery into Ai9 mice and chacterized by imaging