A UC San Francisco-led study has identified signatures of ethnicity in the genome that appear to reflect an ethnic group’s shared culture and environment, rather than its common genetic ancestry.

UC San Francisco and Pfizer Inc.’s Centers for Therapeutic Innovation have renewed an agreement to identify and develop biologic compounds against both known and novel targets.

Jeff Sheehy, the longtime director of communications at UC San Francisco’s Aids Research Institute, has been appointed by San Francisco Mayor Edwin M. Lee to serve on the San Francisco Board of Supervisors.

Stephen J. Barclay, the former senior vice chancellor of Finance and Administration who guided UCSF through state budget cutbacks as well as the planning of the Mission Bay campus, has died. He was 70.

Researchers at UCSF have developed a new optogenetic tool that can be used to completely eliminate single cells from brain networks in animals. The researchers believe the new tool will enable exquisitely precise experiments to help researchers understand how each cell contributes to the whole.