Abstract:
Novel vaccines for use against beta -hemolytic Streptococcus colonization or infection are disclosed. The vaccines contain an immunogenic amount of streptococcal C5a peptidase, or a fragment or mutant thereof. Also disclosed is a method of protecting a susceptible mammal against beta -hemolytic Streptococcus colonization or infection by administering such a vaccine.
Abstract:
An isolated and purified DNA molecule, and an isolated and purified protein, that are involved in the degradation of s-triazine compounds (e.g., atrazine) are provided. A method for the purification of this protein is also provided.
Abstract:
A magnetic resonance imaging (MRI) technique compensates for image-to-image fluctuation due to physiological motion to improve detection of cerebral and neuronal activity. Simultaneous monitoring of respiration and cardiac signals during imaging allows retrospective synchronization of imaging data with physiological activity. The technique extracts respiratory and cardiac motions directly from functional MRI data, but does not rely on the periodicity of the physiological signals; does not affect signal changes arising from neuronal activation; and is beneficial to images acquired at any speed. Direct extraction of physiological parameters can eliminate external monitoring. Respiratory cycles are preferably derived from the phase of the center of a navigator echo in rapid, low flip angle pulsed NMR imaging (FLASH) and from the phase of the center k-space point in echo planar imaging (EPI). Cardiac cycles are preferably determined from projections obtained from the navigator echo in FLASH and the center k-space lines in EPI.
Abstract:
This invention is directed to mutant SPE-A toxins or fragments thereof, vaccine and pharmaceutical compositions, and methods of using the vaccine and pharmaceutical compositions. The preferred SPE-A toxin has at least one amino acid change and is substantially non-lethal compared with the wild type SPE-A toxin. The mutant SPE-A toxins can form vaccine compositions useful to protect animals against the biological activities of wild type SPE-A toxin.
Abstract:
Disclosed are polynucleotides encoding single chain variable region fragments of a monoclonal antibody to CD19 and methods for preparing the same. Also disclosed are single chain variable region polypeptides, methods for preparing the same, point modified polypeptides, and dimers derived therefrom. An additional aspect of the invention discloses immunoconjugates formed between a polypeptide of the invention and cytotoxic agents, as well as methods for their preparation, as well as use in the treatment of cancer.
Abstract:
A process for the oxidative dehydrogenation of hydrocarbons is disclosed in which C2-C6 alkanes are contacted with an oxygen containing gas in a fluidized catalyst bed of platinum, rhodium, nickel or platinum-gold supported on alpha -alumina or zirconia. Ethane is dehydrogenated to ethylene and higher alkanes are dehydrogenated to ethylene, propylene and iso-butylene.
Abstract:
A method of processing poultry comprises the opening of a poultry carcass (10) along at least one lateral side (16) from the thoracic inlet to about the midline of the abdomen, to permit separating a breast portion (20) of the poultry carcass (10) from the spine (24, 41) by hinging along an opposite lateral side from the initial severing line. This opens the carcass for evaluation of bacterial contamination of internal organs (38). The carcass (10) is opened along a line where few bones need to be severed, and the internal organs (38) are not broken or torn, which is a major cause of contamination in conventional poultry processing methods. The longitudinal severing line extends from the neck to the pubis and when the breast portion (20), including one wing (14) is moved, air sac membranes and fat layers will contain the internal organs (38) and form separation planes to separate the breast portion (20) from the liver (42), spleen, heart (44) and intestines. The processing can be mechanized or done by hand.
Abstract:
The present invention provides the complete cDNA sequence of maize acetyl CoA carboxylase and methods for conferring herbicide tolerance and/or altering the oil content of plants by introducing and expressing a plant acetyl CoA carboxylase gene in plant cells. The method of imparting herbicide tolerance to a plant includes the steps of introducing an expression cassette encoding a plant acetyl CoA carboxylase or an antisense DNA sequence complementary to the sequence for a plant acetyl CoA carboxylase gene operably linked to a promoter functional in plant cells, into the cells of a plant tissue and expressing the plant acetyl CoA carboxylase gene in an amount effective to render the acetyl CoA carboxylase and/or plant cell tolerant to the herbicides. The method of altering the oil content in a plant includes the steps of introducing an expression cassette into plant cells and expressing the acetyl CoA carboxylase gene in an amount effective to alter the oil content of the cells. The expression cassette can also be introduced into other host cells to increase yield of a plant acetyl CoA carboxylase so that crystallized enzyme can be used to screen and identify other herbicides that bind to and inhibit the enzyme.
Abstract:
Cytotoxic biotherapeutic agents effective for treating certain types of cancer in humans are provided which comprise the TP-3 murine monoclonal antibody chemically conjugated to pokeweed antiviral protein (PAP). The invention further provides a method which utilizes the disclosed cytotoxic biotherapeutic agents to systemically treat cancer patients. With slight modifications the method of the present invention should be generally applicable to preparation and use of other cytotoxic biotherapeutic agents using chemical or recombinant derivatives of the TP-3 or TP-1 antibodies or PAP toxin. The invention is applicable to cancer patients who express the p80 antigen recognized by the TP-1/TP-3 antibodies either on the surface of their tumor cells or on the tumor blood vessels.
Abstract:
A nucleotide sequence is provided for the VR-2332 virus, which is capable of causing Porcine Reproductive and Respiratory Syndrome. The nucleotide sequence includes protein coding regions that are inserted into recombinant vectors for the host expression of viral proteins according to a variety of vaccination techniques. Diagnostic assays utilize fragmentary sequences or oligonucleotides to selectively identify the VR-2332 nucleic acids by hybridization or PCR amplification reactions that distinguish VR-2332 nucleotide sequences from other PRRS-causative viruses which are immunologically distinct from VR-2332.