Sangamo BioSciences, Inc. To Webcast Presentations At Investor And Analyst Briefing

RICHMOND, Calif., Nov. 30 /PRNewswire-FirstCall/ -- Sangamo BioSciences, Inc. announced today that the company will update the financial community on its latest developments in several of its therapeutic programs and discuss other business matters at its annual Investor and Analyst Briefing that will be held from 4:00 to 6:00 pm ET, on Wednesday, December 6, 2006.

The presentations will be webcast live and may be accessed via a link on the Sangamo BioSciences website in the Investor Relations section under "Company Overview" http://phx.corporate-ir.net/phoenix.zhtml?c=120938&p=irol- IRHome. A replay of the presentations will also be available for one month after the event.

About Sangamo BioSciences, Inc.

Sangamo BioSciences, Inc. is focused on the research and development of novel DNA-binding proteins for therapeutic gene regulation and modification. The most advanced ZFP Therapeutic(TM) development program is currently in a Phase 2 clinical trial for evaluation of safety in patients with diabetic neuropathy. Phase 1 clinical trials are ongoing to evaluate a ZFP Therapeutic for peripheral artery disease. Other therapeutic development programs are focused on ischemic heart disease, neuropathic pain, cancer and infectious and monogenic diseases. Sangamo's core competencies enable the engineering of a class of DNA-binding proteins known as zinc finger DNA-binding proteins (ZFPs). By engineering ZFPs that recognize a specific DNA sequence Sangamo has created ZFP transcription factors (ZFP TF(TM)) that can control gene expression and, consequently, cell function. Sangamo is also developing sequence-specific ZFP Nucleases (ZFN(TM)) for therapeutic gene modification as a treatment for a variety of monogenic diseases, such as X-linked SCID and hemophilia, and for infectious diseases, such as HIV. Sangamo has established several Enabling Technology Agreements with companies to apply its ZFP Technology to enhance the production of protein pharmaceuticals. For more information about Sangamo, visit the company's web site at www.sangamo.com.

This press release may contain forward-looking statements based on Sangamo's current expectations. These forward-looking statements include, without limitation, references to the research and development of novel ZFP TFs and ZFNs and therapeutic applications of Sangamo's ZFP technology platform. Actual results may differ materially from these forward-looking statements due to a number of factors, including technological challenges, Sangamo's ability to develop commercially viable products and technological developments by our competitors. See the company's SEC filings, and in particular, the risk factors described in the company's Annual Report on Form 10-K and its most recent 10-Q. Sangamo BioSciences, Inc. assumes no obligation to update the forward-looking information contained in this press release.

Sangamo BioSciences, Inc.

CONTACT: Elizabeth Wolffe, Ph.D. of Sangamo BioSciences, Inc.,+1-510-970-6000, ext. 271, or ewolffe@sangamo.com; or media, Justin Jacksonof Burns McClellan, Inc., +1-212-213-0006

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