摘要:
Embodiments of the present invention generally disclose methods, compositions and uses for generating and expressing enterobacterial-associated peptides. In some embodiments, enterobacterial-associated peptides include, but are not limited to plague-associated peptides. In certain embodiments, methods generally relate to making and using compositions of constructs including, but not limited to, attenuated or modified vaccinia virus vectors expressing enterobacterial-associated peptides. In other embodiments, vaccine compositions are reported of use in a subject.
摘要:
Recombinant bacteria capable of metabolizing sucrose are described. The recombinant bacteria comprise in their genome or on at least one recombinant construct, a novel nucleotide sequence encoding a polypeptide having sucrose transporter activity and a nucleotide sequence encoding a polypeptide having sucrose hydrolase activity. These nucleotide sequences are each operably linked to the same or a different promoter. Recombinant bacteria capable of metabolizing sucrose to produce glycerol and/or glycerol-derived products such as 1,3-propanediol and 3-hydroxypropionic acid are also described.
摘要:
Vaccines for conferring immunity in mammals to infective pathogens are provided, as well as vectors and methods for plastid transformation of plants to produce protective antigens and vaccines for oral delivery. The invention further provides transformed plastids having the ability to survive selection in both the light and the dark, at different developmental stages by using genes coding for two different enzymes capable of detoxifying the same selectable marker, driven by regulatory signals that are functional in proplastids as well as in mature chloroplasts. The invention utilizes antibiotic-free selectable markers to provide edible vaccines for conferring immunity to a mammal against Bacillus anthracis, as well as Yersina pestis. The vaccines are operative by parenteral administration as well. The invention also extends to the transformed plants, plant parts, and seeds and progeny thereof. The invention is applicable to monocot and dicot plants.
摘要:
A method and system are disclosed for identifying and/or locating complex patterns in an amino acid sequence stored in a computer file or database. According to an aspect of the present invention, techniques are provided to facilitate queries of protein databases. For protein descriptions received in response to the queries, embodiments of the present invention may scan the received protein descriptions to identify and locate Replikin patterns. A Replikin pattern is defined to be a sequence of 7 to about 50 amino acids that include the following three (3) characteristics, each of which may be recognized by an embodiment of the present invention: (1) the sequence has at least one lysine residue located six to ten amino acid residues from a second lysine residue; (2) the sequence has at least one histidine residue; and (3) at least 6% of the amino acids in the sequence are lysine residues.
摘要:
A novel technique for improving the production by bacteria of amino acids that contain sulfur has been developed, and thereby a sulfur-containing amino acid-producing bacterium, and a method for producing a compound such as a sulfur-containing amino acid are provided. A sulfur-containing amino acid, a related substance thereof, or a mixture of these can be produced by culturing a bacterium belonging to the family Enterobacteriaceae, which has a sulfur-containing amino acid-producing ability and has been modified so that the activity of the protein encoded by the yeeE gene, for example, the protein of the following (A) or (B), is increased in a medium, and collecting a sulfur-containing amino acid, a related substance thereof, or a mixture of them from the medium: (A) a protein having the amino acid sequence of SEQ ID NO: 14, (B) a protein having the amino acid sequence of SEQ ID NO: 14 but which includes one or several amino acid substitutions, deletions, insertions, or additions, and when the intracellular activity of this protein is increased, the ability of the bacterium to produce a sulfur-containing amino acid is improved.
摘要翻译:已经开发了用于改善含有硫的氨基酸的细菌生产的新技术,由此提供含硫氨基酸生产细菌,以及制备含硫氨基酸化合物的方法。 含硫氨基酸,其相关物质或它们的混合物可以通过培养属于肠杆菌科的细菌来生产,该细菌具有含硫氨基酸生产能力,并且已被修饰,使得其活性 由yeeE基因编码的蛋白质,例如下列(A)或(B)的蛋白质在培养基中增加,并将含硫氨基酸,其相关物质或其混合物从 培养基:(A)具有SEQ ID NO:14的氨基酸序列的蛋白质,(B)具有SEQ ID NO:14的氨基酸序列的蛋白质,但包括一个或多个氨基酸取代,缺失,插入, 或添加时,并且当该蛋白质的细胞内活性增加时,细菌产生含硫氨基酸的能力得到改善。
摘要:
A method for producing an L-amino acid is described using a bacterium of the Enterobacteriaceae family, wherein the bacterium contains a protein which is able to confer resistance to growth inhibition by L-cysteine.
摘要:
The present invention relates to methods of treating virus-induced cancer with the polypeptides that are capable of killing cells. The polypeptide comprises a targeting agent covalently attached to a channel-forming moiety. In a preferred embodiment, the channel-forming moiety comprises a colicin and the targeting agent is a reconstructed antibody mimetic derived from monoclonal antibody variants against Epstein-Barr virus gp350/220
摘要:
The present invention provides antigens and vaccines useful in prevention of infection by Yersinia pestis. The present invention provides pharmaceutical compositions of such antigens and/or vaccines. The present invention provides methods for the production of Y. pestis protein antigens in plants, as well as methods for their use in the treatment and/or prevention of Y. pestis infection.
摘要:
Provided herein are methods for treating planktonic bacteria or a biofilm. The methods include contacting the planktonic bacteria or biofilm with an effective amount of an isolated Citrobacter freundii colicin A polypeptide, wherein the polypeptide has an antibacterial activity against the planktonic bacteria or the biofilm. Methods are also provided herein for treating a subject that has a bacterial infection, for example caused by a biofilm. The methods can be used to treat a biofilm on a living or non-living surface. Also provided herein are Citrobacter freundii colicin A polypeptides that have an antibacterial activity against planktonic bacteria or surface attached bacteria, and nucleic acid sequences encoding the polypeptides. Medical devices comprising a surface having an antimicrobial effective amount of a Citrobacter freundii colicin A polypeptide, or a nucleic acid molecule encoding the polypeptide, are also disclosed.
摘要:
The present invention discloses polypeptides with antibacterial properties and use said polypeptides and/or polynucleotides encoding said polypeptides in the preparation of medicament for the treatment of infectious diseases. The inventors also provide vectors encoding and adapted for expression of the polypeptides and polynucleotides of the invention. The vectors may be used in the preparation of a medicament for the treatment of bacterial infections. Further, the vector of the invention may be used to reduce the load of bacteria in food and/or feed.