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Updated: Oct 2, 2026

Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 23, 2013
Identification by western blots of virulence specific antigens of Chlamydia psittaci isolated from ewes
K Layachi1, A Rodolakis, D Buzoni-Gatel
1INRA, Pathologie Infectieuse et Immunologie, Nouzilly, France.
Abstract:
Specific antigens of virulent strains of Chlamydia psittaci isolated from ruminants were characterized by western blotting. The immunoblot analyses were performed with chlamydial elementary bodies from abortive (AB7 strain) or intestinal (iB1 strain) chlamydiae using mouse and rabbit immune sera raised against viable chlamydiae or proteic extracts. Eleven antigens were found to be AB7-specific, but only 4 (96, 90, 88 and 49-50 kDa) were recognized by both mouse and rabbit sera against viable AB7 strains. These could be candidates for specific diagnosis of caprine and ovine abortive chlamydiosis. No iB1-specific antigen recognized by mouse and rabbit anti-sera could be identified.

