Experiment AAV Tropism project Experiment Condition AAV3b males Assay Description: Cre activity was assessed by image quantification Tissue Measured: diaphragm Measurement Type: Editing Efficiency Record ID 15000001739 Editor Delivery System AAV Delivery System Subtype Viral vector Guide Vector AAV3b-ZsGreen-Cre; Model Species Mouse Model Name B6.Cg-Gt(ROSA)26Sor ^ tm9(CAG-tdTomato)Hze/J Application Method intravenous Application Site whole body 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 34.69  1 34.13  2 53.36  3 33.07  4 18.19  Measurement Units: GC/ug DNA Mean 1652  1 5610  2 1395  3 1117  4 46  6 92

AAV3b diaphragm AAV serotypes delivering Cre recombinase were tested by intravenous delivery into Ai9 mice and chacterized by imaging