Detection of Streptococcus pneumoniae and immunization...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Reexamination Certificate

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C435S091100, C435S091200, C435S975000, C536S023700, C536S024320, C536S024330

Reexamination Certificate

active

06869767

ABSTRACT:
The present invention relates to oligonucleotide primers, and methods of diagnosis using the primers, wherein particular primer pairs prime the universal amplification of an amplicon for specificStreptococcus pneumoniaefrom all 90 known serotypes. The amplicon includes at least a portion of the psaA gene ofSteptococcus pneumoniae. In the methods, amplification of a biological sample using the primer pairs of the invention provide an amplicon only if the sample contains a serotype ofStreptococcus pneumoniae. The invention further relates to an isolated nucleic acid including a nucleic acid amplicon obtained using a pair of oligonucleotide primers of the invention. In still a further aspect, the invention discloses a polypeptide including an amino acid sequence encoded by a nucleic acid amplicon obtained using oligonucleotide primers. Additionally, methods of stimulating an immune response against a serotype ofStreptococcus pneumoniaein a mammal include either administering a polypeptide encoded by a nucleic acid amplicon obtained using the pair of oligonucleotide primers of the invention, or administering a nucleic acid containing a nucleic acid amplicon obtained using the pair of oligonucleotide primers of the invention.

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