Dr. Murashige is a partner at Morrison & Foerster and co-chair of the firm's Patent Group. Her practice focuses on the pharmaceutical and healthcare industries. She is a member of the AAAS committee on Scientific Freedom and Responsibility.

Dr. Murashige has practiced law since 1977. She was associated with the firm of Lyon & Lyon of Los Angeles and was in corporate practice at Syntex. In 1983, she left Genentech to form Ciotti & Murashige, which became one of the nation's premier biotechnology and bioscience practices. She joined Morrison & Foerster in 1991 along with the rest of the Ciotti & Murashige group.

Dr. Murashige has taught college chemistry and was Physical Sciences Chairperson of the College of San Mateo for six years. She was formerly President of the Peninsula Intellectual Property Law Association, and a member of the United States Patent and Trademark Office Biotechnology Institute Board. Dr. Murashige was a member of the former National Biotechnology Policy Board for NIH, and is a past chairperson of the Biotechnology Committee of the American Intellectual Property Law Association. She has been an invited speaker at the Human Genome Conference of patent matters and has been an advisor on gene patenting to the OTA. She has spoken before Members Congress and their staffs regarding the Human Genome Project. She was chosen as one of the Best Lawyers in Washington by her peers.