摘要:
The present invention discloses a method for the preservation of beverages comprising the use of a killer toxin. Specifically, zymocin is used in carbonated drinks. The zymocin is shown to be active against a wide range of different yeast strains. The invention further discloses a DNA fragment encoding zymocin. The DNA sequence is also disclosed.
摘要:
The present invention provides a vaccine against Lyme disease, wherein it contains one or more monoclonal antibodies which are specific for the 31 kD antigen (OspA) or the 34 kD antigen (OspB) of Borrelia burgdorferi. The present invention also provides a process for obtaining this vaccine, as well as new monoclonal anti-bodies and antigens.
摘要:
Heptaprenyl diphosphate (HDP)-synthetase derived from Bacillus stearothermophilus which enzymes have the amino acid sequences shown as SEQ ID NOs: 1 to 3; 1 and 2; 2 and 3; or 1 and 3, DNA encoding them, and a method of producing the enzymes. According to the invention it is possible to industrially produce HDP-synthesizing enzyme and HPD.
摘要翻译:衍生自嗜热脂肪芽孢杆菌的七磷杂二磷酸(HDP) - 合成酶,其具有如SEQ ID NO:1至3所示的氨基酸序列; 1和2; 2和3; 或1和3,编码它们的DNA,以及生产酶的方法。 根据本发明,可以在工业上生产HDP合成酶和HPD。
摘要:
The development of subunits and subunit analogs of the cholera exotoxin by recombinant DNA techniques provides vaccine products that can retain their biological activity and immunogenicity, and can confer protection against disease challenge. Genetically-engineered modifications of the subunits result in products that retain immunogenicity, yet are reduced in, or are essentially free of, enzymatic activity associated with toxin reactogenicity.
摘要:
Nonimmunosuppressant cyclosporin derivatives having cyclophilin-binding activity, for example, the compound, �MeIle!.sup.4 -ciclosporin, are useful in inhibiting HIV-1 replication in treating AIDS and AIDS related disorders.
摘要:
A chimeric toxin comprising protein fragments joined together by peptide bonds, the chimeric toxin comprising, in sequential order, beginning at the amino terminal end of the chimeric toxin, (a) the enzymatically active Fragment A of diphtheria toxin, (b) a first fragment including the cleavage domain 1.sub.1 adjacent the Fragment A of diphtheria toxin, (c) a second fragment comprising at least a portion of the hydrophobic transmembrane region of Fragment B of diphtheria toxin, the second fragment having a deletion of at least 50 diphtheria toxin amino acid residues, the deletion being C-terminal to the portion of the transmembrane region, and the second fragment not including domain 1.sub.2, and (d) a third fragment comprising a portion of a cell-specific polypeptide ligand, the portion including at least a portion of the binding domain of the polypeptide ligand, the portion of the binding domain being effective to cause the chimeric toxin to bind selectively to a predetermined class of cells to be attacked by the enzymatically active Fragment A.
摘要:
Nucleotide fragments which encode a bacteriocin composition derived from Micrococcus varians and for preparing compositions to obtain the bacteriocin and for obtaining recombinant microorganisms. The nucleotide fragments include, in particular, nucleotides 154 to 228 and nucleotides 88 to 153 and their combination, nucleotides 88 to 228, identified in the sequence lists herein.
摘要:
An isolated peptide which in a microorganism, and particularly in Micrococcus varians, is a signal peptide which initiates expression of a bactericide composition.
摘要:
A purified pneumococcal surface protein A (PspA) comprises a truncated form of the PspA protein which is immunoprotective and contains the protective epitopes of PspA. The PspA protein is soluble in physiologic solution and lacks at least the cell membrane anchor region of the whole protein. The protein is formed by insertion-duplication of mutagenesis of S. pneumoniae with pspA gene and expression of the truncated protein into the growth medium.