Abstract: Artificial chromosomes, including ACes, that have been engineered to contain available sites for site-specific, recombination-directed integration of DNA of interest are provided. These artificial chromosomes provide tractable, efficient and rational engineering of the chromosome for a variety of applications.

Abstract: Methods for preparing cell lines that contain plant artificial chromosomes, methods for preparation of plant artificial chromosomes, methods for targeted insertion of heterologous DNA into plant artificial chromosomes, and methods for delivery of plant chromosomes to selected cells and tissues are provided. In particular, plant artificial chromosomes that are substantially composed of repeated nucleic acid units of varying amounts of heterochromatin and euchromatin are provided. Also provided are methods of using plant and animal artificial chromosomes in the production of valuable transgenic plants. Methods for identifying plant genes encoding particular traits using artificial chromosomes and for producing an acrocentric plant chromosome also are provided.

Abstract: Artificial chromosomes, including ACes, that have been engineered to contain available sites for site-specific, recombination-directed integration of DNA of interest are provided. These artificial chromosomes permit tractable, efficient, rational engineering of the chromosome for a variety of applications.

Abstract: Artificial chromosomes, including ACes, that have been engineered to contain available sites for site-specific, recombination-directed integration of DNA of interest are provided. These artificial chromosomes provide tractable, efficient and rational engineering of the chromosome for a variety of applications.

Abstract: Methods for preparing cell lines that contain plant artificial chromosomes, methods for preparation of plant artificial chromosomes, methods for targeted insertion of heterologous DNA into plant artificial chromosomes, and methods for delivery of plant chromosomes to selected cells and tissues are provided. In particular, plant artificial chromosomes that are substantially composed of repeated nucleic acid units of varying amounts of heterochromafin and euchromatin are provided. Also provided are methods of using plant and animal artificial chromosomes in the production of valuable transgenic plants. Methods for identifying plant genes encoding particular traits using artificial chromosomes and for producing an acrocentric plant chromosome also are provided.

Abstract: Artificial chromosomes, including ACes, that have been engineered to contain available sites for site-specific, recombination-directed integration of DNA of interest are provided. These artificial chromosomes permit tractable, efficient, rational engineering of the chromosome for a variety of applications.

Abstract: Methods for preparing cell lines that contain plant artificial chromosomes, methods for preparation of plant artificial chromosomes, methods for targeted insertion of heterologous DNA into plant artificial chromosomes, and methods for delivery of plant chromosomes to selected cells and tissues are provided. In particular, plant artificial chromosomes that are substantially composed of repeated nucleic acid units of varying amounts of heterochromatin and euchromatin are provided. Also provided are methods of using plant and animal artificial chromosomes in the production of valuable transgenic plants. Methods for identifying plant genes encoding particular traits using artificial chromosomes and for producing an acrocentric plant chromosome are also provided.

Abstract: Artificial chromosomes, including ACes, that have been engineered to contain available sites for site-specific, recombination-directed integration of DNA of interest are provided. These artificial chromosomes permit tractable, efficient, rational engineering of the chromosome for a variety of applications.

Abstract: Methods for preparing cell lines that contain plant artificial chromosomes, methods for preparation of plant artificial chromosomes, methods for targeted insertion of heterologous DNA into plant artificial chromosomes, and methods for delivery of plant chromosomes to selected cells and tissues are provided. In particular, plant artificial chromosomes that are substantially composed of repeated nucleic acid units of varying amounts of heterochromatin and euchromatin are provided. Also provided are methods of using plant and animal artificial chromosomes in the production of valuable transgenic plants. Methods for identifying plant genes encoding particular traits using artificial chromosomes and for producing an acrocentric plant chromosome are also provided.

Abstract: Methods and materials are disclosed for the production of purified, active recombinant human neutrophil protease, PR-3, via activation of a pro-form herein referred to as proPR-3. Human PR-3 is useful for discovering inhibitors of excessive release of mature, active TNF&agr;. Also disclosed are methods for the identification of inhibitors of the conversion of the pro-form of TNF&agr; to its mature active form.

Abstract: Methods and materials are disclosed for the production of purified, active recombinant human neutrophil protease, PR-3, via activation of a pro-form herein referred to as proPR-3. Human PR-3 is useful for discovering inhibitors of excessive release of mature, active TNF&agr;. Also disclosed are methods for the identification of inhibitors of the conversion of the pro-form of TNF&agr; to its mature active form.

Abstract: Artificial chromosomes, including ACes, that have been engineered to contain available sites for site-specific, recombination-directed integration of DNA of interest are provided. These artificial chromosomes permit tractable, efficient, rational engineering of the chromosome for a variety of applications.

Abstract: The present invention relates to compositions and methods for treating inflammation and other pathological conditions using novel blocking P-selectin antibodies that inhibit adhesion of leukocytes to activated platelets and/or to activated vascular endothelium in vivo. Both murine and humanized antibodies are provided.

Abstract: Compounds having proteolytic inhibitory activity useful for treating diseases, particularly as applied to the treatment of sepsis, AIDS or autoimmune diseases, resulting from a decrease in the circulating level of mature protein hormones derived from the proteolytic cleavage of prohormone precursors such as 26 kDProTNF, and methods for identifying compounds having the desired inhibitory activity are provided.

Abstract: A gene expression system for producing galactosyltransferase comprises an NSO cell recombinantly modified with a polynucleotide encoding galactosyltransferase or a portion thereof which catalyzes the reaction:UDP-D-galactose+N-acetylglucosamine.fwdarw.UDP+D-galactosyl-N-acetyl-D-gluc osamineFurther provided is a method for producing galactosyltransferase by culturing the gene expression system.

Abstract: Methods and materials are disclosed for the production of purified, active recombinant human neutrophil protease, PR-3, via activation of a pro-form herein referred to as proPR-3. Human PR-3 is useful for discovering inhibitors of excessive release of mature, active TNF.alpha.. Also disclosed are methods for the identification of inhibitors of the conversion of the pro-form of TNF.alpha. to its mature active form.

Abstract: The present invention relates to compositions and methods for treating inflammation and other pathological conditions using novel blocking P-selectin antibodies that inhibit adhesion of leukocytes to activated platelets and/or to activated vascular endothelium in vivo. Both murine and humanized antibodies are provided.

Abstract: Cleavage site blocking antibody that binds to prohormones, preferable Tumor Necrosis Factor, thereby preventing the formation of prohormone fragment(s) by proteolysis of the prohormone, and uses of the antibody including prophylactic and therapeutic methods to treat disease, and diagnostic assays for determining the amount of the prohormone and prohormone fragments present in a patients body.

Abstract: Cleavage site blocking antibody that binds to prohormones, preferable Tumor Necrosis Factor, thereby preventing the formation of prohormone fragment(s) by proteolysis of the prohormone, and uses of the antibody including prophylactic and therapeutic methods to treat disease, and diagnostic assays for determining the amount of the prohormone and prohormone fragments present in a patients body.

Abstract: Cleavage site blocking antibody that binds to prohormones, preferable Tumor Necrosis Factor, thereby preventing the formation of prohormone fragment(s) by proteolysis of the prohormone, and uses of the antibody including prophylactic and therapeutic methods to treat disease, and diagnostic assays for determining the amount of the prohormone and prohormone fragments present in a patients body.