A Genetic System in Yeast for Functional Identification of Human p53 Mutations

Mutations in the p53 gene are associated with 50% of all cancers and nearly 80% of the p53 mutations are missense changes. We have developed genetic assays based in yeast that can functionally categorize expressed p53 mutant proteins. The combined assays are referred to as the FIP53 system. Because human p53 cDNA can be conveniently cloned in yeast, the FIP53 system provides a rapid and sophisticated system for the functional analysis of p53 mutants. Four categories of mutations have already been identified.

Mice with a Floxed Allele of the alpha Subunit of the Heterotrimeric G Protein Go or Gi2

Heterotrimeric G proteins couple signals between GPCRs (G protein coupled receptors) and effectors such as adenylyl cyclase, phospholipase C and ion channels. Among the G proteins are Go and Gi2. Go is highly expressed in the brain and some endocrine tissues while Gi2 is widely expressed throughout the body. The ß?-subunits of Go interact with ion channels, and the a subunit has been shown to inhibit adenylyl cyclase. However a physiological role of the Gi2a has not been determined in a tissue specific manner.

Materials And Methods For Detection And Treatment Of Insulin Dependent Diabetes

Insulin-dependent diabetes mellitus (IDDM) affects close to one million people in the United States. It is an autoimmune disease in which the immune system produces antibodies that attack the body's own insulin-manufacturing cells in the pancreas. Patients require daily injections of insulin to regulate blood sugar levels. The invention identified two proteins, named IA-2 and IA-2beta, that are important markers for type I (juvenile, insulin-dependent) diabetes. IA-2/IA-2beta, when used in diagnostic tests, recognized autoantibodies in 70 percent of IDDM patients.

TRPC Knockout (KO) Mice and Mice with a Floxed Allele of TRPC Ion Channel Genes

TRPCs (Canonical Transient Receptor Potential Channels) are a group of non-selective cation channels that allow sodium and calcium into cells. There are seven different genes in mice that code TRPCs. The in vivo roles played by TRPCs as a whole are poorly understood and very little is known about the in vivo roles played by individual TRPCs nor the role of these channels in specific tissues or cells.

Polyvalent Influenza Virus-Like Particles (VLPs) and Use as Vaccines

Influenza virus is a major public health concern, causing up to 500,000 deaths annually. The current strategy of reformulating vaccines annually against dominant circulating strains leads to variable protective efficacy and is unlikely to protect against novel influenza viruses with pandemic potential. Thus, there is a great need for a vaccine that provides “universal” protection against influenza viruses.

Human and Veterinary Cancer Therapeutic Agent Utilizing Anthrax Toxin-Based Technology

Due to the disorganized nature of blood vessels that run through tumors, chemotherapeutic agents often fail to penetrate tumors and kill cancer cells at the tumor’s center. This can lead to ineffective chemotherapeutic treatments, because tumors can quickly grow back if the entire tumor is not destroyed. NIH researchers have developed a therapeutic agent that solves this problem facing current chemotherapy treatments.

Development of a Transferrable Norwalk Virus Epitope and Detector Monoclonal Antibody

Noroviruses are now recognized as the major cause of non-bacterial gastroenteritis in all age groups, and efforts are underway to develop an effective vaccine. The lack of a robust cell culture system for human noroviruses has complicated vaccine development. Hence, norovirus virus like particles (VLPs) have played an important role in the understanding of virus structure, immune response, antigenic diversity, and vaccine design.

Evans Blue Dye Derivatives for Serum Albumin Labeling

The invention is an imaging agent and method of use for imaging blood pools and the lymphatic system. The imaging agent binds with high affinity to serum albumin, the most abundant serum protein, and can be tagged with several isotopes making it suitable for magnetic resonance imaging or positron emission tomographic imaging. To date, only very few blood-pool tracers have been introduced for positron emission tomography. The existing ones have short half-lives (20.4 min for 11C and 2.05 min for 15O) and thus can only be used in centers with an in-house cyclotron.