摘要:
Three conjugation methods for use with the capsular saccharide of Streptococcus agalactiae. In the first method, reductive animation of oxidized sialic acid residue side chains is used, but the aldehyde groups are first aminated, and then the amine is coupled to a carrier via a linker. In the second method, sialic acid residues and/or N-acetyl-glucosamine residues are de-N-acetylated to give amine groups, and the amine groups are coupled to a carrier protein via a linker. In the third method, linkage is via galactose residues in the capsular saccharide rather than sialic acid residues, which can conveniently be achieved using galactose oxidase.
摘要:
Disclosed herein are various open reading frames from a strain of E. coli responsible for neonatal meningitis (MNEC), and a subset of these that is of particular interest for preparing compositions for immunising against MNEC infections.
摘要:
Influenza vaccines containing insoluble particulate adjuvants have been found to elicit an IgG response that is primarily a TH2 response (IgG1). This response can be shifted towards a TH1 response (IgG2a) by including immunopotentiators in the compositions. Thus the invention provides an immunogenic composition comprising: (i) an influenza virus antigen; (ii) an insoluble particulate adjuvant; and (iii) a immunopotentiator.
摘要:
The invention includes a GAS antigen, GAS 40, which is particularly suitable for use either alone or in combinations with additional GAS antigens, such as GAS 117, GAS 130, GAS 277, GAS 236, GAS 40, GAS 389, GAS 504, GAS 509, GAS 366, GAS 159, GAS 217, GAS 309, GAS 372, GAS 039, GAS 042, GAS 058, GAS 290, GAS 511, GAS 533, GAS 527, GAS 294, GAS 253, GAS 529, GAS 045, GAS 095, GAS 193, GAS 137, GAS 084, GAS 384, GAS 202, and GAS 057.
摘要:
An ADP-ribosylating toxin from Listeria monocytogenes is disclosed, together with mutant toxins and uses therefor. There is only a low level of sequence identity between this toxin and known toxins such as the iota toxin from Clostridium perfringens.
摘要:
The invention provides proteins and nucleic acid sequences from Streptococcus Pneumoniae, together with a genome sequence. These are useful for the development of vaccines, diagnostics, and antibiotics.
摘要:
A dimeric protein comprising a first fusion protein and a second fusion protein, wherein the first fusion protein comprises a targeting domain, a leucine zipper domain, and an antigen; and wherein the second fusion protein comprises a targeting domain, a leucine zipper domain, and optionally an antigen. Nucleic acid vectors encoding proteins of the invention are provided, particularly for use in nucleic acid vaccination.
摘要:
GBS antigens GBS-80 and Spb1 are expressed in a single polypeptide chain, preferably with Spb1 upstream of GBS-80. Thus the invention provides a polypeptide comprising an amino acid sequence NH2—W—X-L-Y—Z—CO2H wherein: X is a Spb 1 sequence; L is an optional linker; Y is a GBS-80 sequence; W is an optional N-terminal sequence; and Z is an optional C-terminal sequence.
摘要:
The degree of polymerisation (DP) is an important parameter for analysis of saccharide antigens, particularly in glycoconjugates. The invention provides methods that can be used to measure DP for capsular saccharides, particularly for meningococcal saccharides e.g. from serogroups W135 and Y. A preferred method is based on reduction of terminal sialic acid residues on saccharides, with DP then being calculated by comparing the molar ratio of total sialic acid to reduced sialic acid.
摘要:
Cytotoxic T-cell epitopes from C.pneumoniae proteins have been empirically determined. The epitopes from corresponding C.trachomatis proteins have also been identified, and some of these are identical to those from C.pneumoniae. The empirical method showed that algorithmic prediction was inadequate. The epitopes are useful for immunisation and/or diagnosis.