Neutralization epitopes on the antigenic domain II of the Orientia tsutsugamushi 56-kDa protein revealed by monoclonal antibodies.

Abstract:

:Monoclonal antibodies (MoAbs) reactive with the authentic Orientia tsutsugamushi 56-kDa protein were generated. MoAb FS10 and FS15 showed in vitro, as well as, in vivo neutralizing activity upon O. tsutsugamushi infection. Deletion mutants of the gene for 56-kDa protein of O. tsutsugamushi Boryong were expressed to map the binding region. FS10 and FS15 are bound to amino acids (aa) located in an antigenic domain II, at residues 140-160 and 187-214, respectively. Computer modeling indicated that aa 146-153 were important for antigenicity against FS10. A sequence for aa 142-150 was highly homologous between oriential strains. These results suggest that the antigenic determinant for neutralizing MoAbs is an epitope within aa 140-160. Furthermore, this region may be important for the adhesion/invasion or intracellular survival of O. tsutsugamushi within host cells.

journal_name

Vaccine

journal_title

Vaccine

authors

Seong SY,Kim MK,Lee SM,Odgerel Z,Choi MS,Han TH,Kim IS,Kang JS,Lim BU

doi

10.1016/s0264-410x(00)00167-5

subject

Has Abstract

pub_date

2000-08-15 00:00:00

pages

2-9

issue

1

eissn

0264-410X

issn

1873-2518

pii

S0264-410X(00)00167-5

journal_volume

19

pub_type

杂志文章

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