Sequence constancies and variations in genes encoding three new meningococcal vaccine candidate antigens.

Abstract:

:By the strategy "reverse vaccinology" a number of new antigens have been identified in Neisseria meningitidis, which are potential candidates for a highly needed broad-spectrum meningococcal vaccine. In the present study we examined the prevalence, sequence constancies and variations of the genes encoding three of these new antigens designated, genome-derived neisserial antigen (GNA) 1870, GNA1946 and GNA2132. All three genes were present in all N. meningitidis isolates tested. Concerning gna1870, three major variants of the gene sequences and deduced amino acid sequences were identified and 56% of the deduced amino acids were conserved in all isolates. In gna1946, 98% of the deduced amino acids were conserved and in gna2132, 54% of the deduced amino acids were conserved. Based on gene prevalence and conservation, all three antigens are promising candidates for an effective meningococcal vaccine against all N. meningitidis irrespective of serogroup.

journal_name

Vaccine

journal_title

Vaccine

authors

Jacobsson S,Thulin S,Mölling P,Unemo M,Comanducci M,Rappuoli R,Olcén P

doi

10.1016/j.vaccine.2005.11.006

subject

Has Abstract

pub_date

2006-03-15 00:00:00

pages

2161-8

issue

12

eissn

0264-410X

issn

1873-2518

pii

S0264-410X(05)01133-3

journal_volume

24

pub_type

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