Newswise — Researchers have successfully sequenced the DNA of 15 mouse strains most commonly used in biomedical research. More than 8.3 million genetic variations, or single nucleotide polymorphisms (SNPs), were discovered among the genomes of the 15 mouse strains, and the data are now available on a public website. These new data on laboratory mice will help researchers better understand what makes some individuals more susceptible than others to certain diseases, and will serve as a valuable resource as researchers determine the role that various environmental substances may play in the development of disease.

The "Re-sequencing and SNP Discovery Project" led by the National Institute ofEnvironmental Health Sciences (NIEHS), part of the National Institutes of Health, and its National Toxicology Program, began less than two years ago with a $13 million budget. The work was completed by Perlegen Sciences, Inc. and the data are available on the National Center for Biotechnology Information website at http://www.ncbi.nlm.nih.gov/SNP/.

WHO: David A. Schwartz, M.D., Director, National Institute of Environmental Health Sciences and National Toxicology Program

Kelly Frazer, Ph.D., Vice President of Genomics Perlegen Sciences, Inc.

David Threadgill, Ph.D., Associate Professor, Department of Genetics University of North Carolina

David Christiani, M.D., Professor of Occupational Medicine andEpidemiology, Environmental Health and Epidemiology, Harvard School of Public Health

WHAT: Teleconference with NIEHS Director and leading scientific experts

WHEN: Wednesday, October 25, 1:00-2:00 p.m. EDT

The National Institute of Environmental Health Sciences (NIEHS), a component of the National Institutes of Health, supports research to understand the effects of the environment on human health. For more information on environmental health topics, please visit our website at http://www.niehs.nih.gov/.

The National Institutes of Health (NIH) — The Nation's Medical Research Agency — includes 27 Institutes and Centers and is a component of the U. S. Department of Health and Human Services. It is the primary federal agency for conducting and supporting basic, clinical, and translational medical research, and it investigates the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit http://www.nih.gov.