Seems like you can, as tonight TUS SFO arrives gate 78
https://www.flysfo.com/flight-info/security
Passengers can connect to certain terminals without exiting and re-entering security. Post-security connectors are available between:
Terminal 1, Boarding Area C, Gates 40 through 48 and Terminal 2, Boarding Area D, Gates 50 through 59.
International Terminal, Boarding Area G, Gates G91 through G102 and Terminal 3, Boarding Areas E and F, Gates 60 through 90.