Experiment AAV Tropism project Experiment Condition AAV6 females Assay Description: Cre activity was assessed by image quantification Tissue Measured: thymus Measurement Type: Editing Efficiency Record ID 15000001893 Editor Delivery System AAV Delivery System Subtype Viral vector Guide Vector AAV6-ZsGreen-Cre; Model Species Mouse Model Name B6.Cg-Gt(ROSA)26Sor ^ tm9(CAG-tdTomato)Hze/J Sample Age 6 weeks Sample Sex Female 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 0.96  1 0.98  2 1.04  3 0.62  4 1.21  Measurement Units: GC/ug DNA Mean 128.17  1 64  2 181  3 124  4 57  5 267  6 76

AAV6 thymus AAV serotypes delivering Cre recombinase were tested by intravenous delivery into Ai9 mice and chacterized by imaging