SAN FRANCISCO — The judge at the center of a nationwide controversy over the sentencing of former Stanford swimmer Brock Turner has been booted from a separate sexual assault case at the request of state prosecutors.

On Tuesday, the Santa Clara District Attorney’s office filed a peremptory challenge against Santa Clara Superior Court Judge Aaron Persky. The move, also known as “papering” a judge, automatically disqualified Persky from presiding over a trial against a male nurse accused of sexually assaulting an anesthetized female patient.