摘要:
The present invention provides nucleic acids encoding B7-related factors that modulate the activation of immune or inflammatory response cells, such as T-cells. Also provided are expression vectors and fusion constructs comprising nucleic acids encoding B7-related polypeptides, including BSL1, BSL2, and BSL3. The present invention further provides isolated B7-related polypeptides, isolated fusion proteins comprising B7-related polypeptides, and antibodies that are specifically reactive with B7-related polypeptides, or portions thereof. In addition, the present invention provides assays utilizing B7-related nucleic acids, polypeptides, or peptides. The present invention further provides compositions of B7-related nucleic acids, polypeptides, fusion proteins, or antibodies that are useful for the immunomodulation of a human or animal subject.
摘要:
Cytoplasmic Antiproteinase-2 and Cytoplasmic Antiproteinase-3 nucleic acids and serine protease inhibitor proteins encoded thereby are useful in the purification of proteins and in the treatment of inflammatory diseases and diseases involving apoptosis.
摘要:
The present invention relates to a human artificial chromosome which is genetically transmissible to the next generation with high efficiency and the method for using the same. More specifically, the present invention relates to: a human artificial chromosome in which an about 3.5 Mb to about 1 Mb region containing an antibody λ light chain gene derived from human chromosome 22 is bound to a chromosome fragment which is transmissible to a progeny through a germ line of a non-human animal, said chromosome fragment is derived from another human chromosome; a non-human animal carrying the human artificial chromosome and an offspring thereof; a method for producing the non-human animal; a method for producing a human antibody using the non-human animal or an offspring thereof; and a human antibody-producing mouse carrying the human artificial chromosome.
摘要:
The present invention includes novel recombinant canine herpes virus (CHV) and novel recombinant CHV genomes, and particularly to those CHV and CHV genomes that contain heterologous nucleic acid molecules. The present invention also relates to the use of such genomes and viruses in a variety of applications, including as therapeutic compositions to protect animals from disease. The present invention also relates to novel isolated CHV nucleic acid molecules, to CHV proteins encoded by such nucleic acid molecules, and to antibodies raised against such CHV proteins as well as to the use of such CHV nucleic acid molecules, proteins and antibodies as therapeutic compositions to protect an animal from CHV. The present invention also includes constructs comprising CHV nucleic acid molecules that include heterologous nucleic acid molecules, to recombinant vectors including such constructs, and to the use of such constructs and vectors in the production of recombinant CHV and recombinant CHV genomes.
摘要:
The present invention pertains to the discovery that B. anthracis possesses a luxS gene that encodes a functional LuxS polypeptide, and that B. anthracis synthesizes a functional AI-2 quorum-sensing molecule. The invention provides mutant B. anthracis bacteria lacking the function of the luxS gene, which do not produce a functional AI-2 molecule and have growth defects compared to wild-type B. anthracis. The invention also concerns methods for inhibiting the growth of B. anthracis, or for preventing or treating B. anthracis infection, by inhibiting the activity of the B. anthracis LuxS polypeptide, or by exposure of the B. anthracis to furanone. In particular, the invention concerns the use of furanone, a compound that inhibits AI-2-mediated quorum-sensing, to inhibit the growth of B. anthracis, to inhibit B. anthracis toxin production, particularly that of protective antigen, and to prevent or treat B. anthracis infection. The invention also provides methods to prevent B. anthracis infection, or enhance an immune response to B. anthracis infection, by administering a vaccine comprising a B. anthracis cell in which the luxS gene is mutated.
摘要:
A method for identifying and isolating cells which produce secreted proteins. This method is based upon a specific characteristic or the expression level of the secreted protein by transiently capturing the secreted protein on the surface of an individual cell, allowing selection of rare cell clones from a heterogeneous population. Also provided is the use of this method to generate cells which produce a desired level of secreted protein or secreted protein of a particular characteristic(s), and organisms which possess such cells. In particular, the method allows rapid isolation of high expression recombinant antibody-producing cell lines, or may be applied directly to rapid isolation of specific hybridomas, or to the isolation of antibody-producing transgenic animals. This method is applicable for any cell which secretes protein.
摘要:
A method for producing one or more Bacillus toxin polypeptides by culturing methylotrophic yeast cells which have a gene(s) capable of expressing the Bacillus toxin polypeptide(s) in such cells under conditions that the gene(s) is/are transcribed is provided. The toxin polypeptide encoding segment of the gene(s) has a G+C content of about 40%-55%, and preferably comprises methylotrophic yeast codons. The preferred species of yeast for expressing such synthetic Bacillus toxin gene(s) is Pichia pastoris. Bacillus toxin polypeptides encoded by synthetic genes are expressed at high levels in transformed methylotrophic yeast cells. The toxin expressing cells may be administered as live cells or heat-killed whole cells to provide an insecticidal composition for killing susceptible insect larvae. Also provided by the present invention are DNAs capable of transforming methylotrophic yeast to express one or more Bacillus toxin polypeptides, cultures of such yeast cells transformed with such DNAs and novel Bacillus toxin polypeptides made by the method of the invention. The transformed yeast cells of the present invention are readily ingested as food by insect larvae which are susceptible to the toxin polypeptides.
摘要:
The invention provides methods and materials related to producing flavonoids as well as other organic compounds. For example, the invention provides isolated nucleic acids, polypeptides, host cells, and methods and materials for producing flavonoids and other organic compounds.
摘要:
DNA encoding an endoglucanase from Trichoderma harzianum is disclosed. The endoglucanase has activity toward mixed .beta.-1,3-1,4 glucans and is especially useful in brewing processes.
摘要:
Methods and compositions are provided for the production of human superoxide dismutase and a novel protocol for enhancing efficiency of expression. The gene encoding for human superoxide dismutase is isolated and inserted into a vector in conjunction with a synthetic linker which provides for enhanced efficiency in translation.E. coli strain D1210 (pSOD.times.8) was deposited at the A.T.C.C. on Sep. 27, 1983 and given Accession No. 39453. Yeast strain 2150-2-3 (pC1/1GAPSOD) and E. coli strains D1210 (pSOD11) and D1210 (pS2OR) were deposited at the A.T.C.C. on May 9, 1984, and given Accession Nos. 20708, 39679 and 39,680, respectively.