Synthetic chimeric fimbrin peptides

Details Synthetic chimeric fimbrin peptides Synthetic chimeric fimbrin peptides

1995-06-02

1998-12-01

Housel, James C.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

4241841, 4241851, 4241921, 4241941, 42419611, 42419711, 4242121, A61K 3900, A61K 39102, A61K 3938, A61K 39385

Patent

active

058434640

ABSTRACT:
The present invention provides synthetic chimeric fimbrin peptides which induce an immunogenic response in animals to non-typable Haemophilus influenzae and that do not require tedious purification techniques. The synthetic chimeric fimbrin peptides reduce the severity of otitis media caused by Haemophilus influenzae. The synthetic chimeric fimbrin peptides are synthesized using commercially available peptide synthesizers. The synthetic chimeric fimbrin peptides comprises three peptide units. The first peptide unit is a subunit of the fimbrin protein. Preferably, the fimbrin subunit is comprised of the amino acids of Sequence ID No. 1 or Sequence ID No. 2. The second peptide unit is a t cell epitope, and preferably has the amino acid sequence of SEQ ID NO. 3. The third peptide unit is a linker peptide unit which joins the first and second peptide unit. The linking sequence preferably has from about 2 to about 15 amino acids, more preferably from about 2 to about 10 amino acids, most preferably from about 5 to about 6 amino acids. The synthetic chimeric fimbrin peptides are useful immunognes against NTHi and also useful as laboratory tool for detecting antibodies in sera. The invention also relates to an immunogenic composition conmtaining the synthetic chimeric fimbrin peptides and a pharmacologically acceptable carrier.

REFERENCES:
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