Abstract:
:In the amino acid (AA) sequences of alpha antigen from mycobacteria, C-terminal regions were variable among a variety of mycobacterial species though the N-terminal regions were relatively conserved. These regions may possess some species-specific antigenic determinants of the alpha antigen from Mycobacterium scrofulaceum (S-alpha). AAs288-300 of S-alpha fused to beta-galactosidase was reactive with the antisera raised against S-alpha. The same fused peptide did not react with the antisera raised against the alpha antigen from Mycobacterium avium (A-alpha) and Mycobacterium bovis BCG (B-alpha). B-cell epitope mapping then was performed focusing on the C-terminal region of S-alpha using the synthetic peptides. Their reactivities with antisera raised against the alpha antigens of three different mycobacterial species were assessed by ELISA. AAs279-286 were a cross-reactive common immunodominant region among three mycobacterial species. This region may be one of the cross-reactive common epitopes in mycobacterial species. And AAs291-300 were reactive only with the antisera raised against S-alpha. This region may possess a species-specific epitope.
journal_name
Microb Pathogjournal_title
Microbial pathogenesisauthors
Takano M,Ohara N,Naito M,Matsumoto S,Matsuo T,Shirai R,Mizuno A,Yamada Tdoi
10.1006/mpat.1997.0147subject
Has Abstractpub_date
1997-08-01 00:00:00pages
95-100issue
2eissn
0882-4010issn
1096-1208pii
S0882-4010(97)90147-9journal_volume
23pub_type
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