The National Institutes of Health intends to negotiate a sole-source contract with Transnetyx Inc. for mouse genotyping services to support ongoing research projects. The services will be performed using the company's existing automated TAGCenters located on the NIH Bethesda Campus, which provide sample collection, shipping, and data access. This arrangement is based on the unique and convenient setup of these multiple on-campus locations, which allows for rapid service at a lower cost. No other timelines, budget amounts, or additional performance locations are specified in this notice.