The antibody is directed to an immune dominant epitope (location unknown) of the Chlamydia LPS, which is a genus specific antigen.                                                    Using a DOT-EIA the antibody reacts strongly with following prototype strains:

- C. trachomatis: A B Ba C D E F G H I J K L L1 L2 L3 and mouse pneumonitis
- C. psittaci : an ornithosis strain and a cat conjunctivitis strain
- C. pneumoniae : TW183

IHC-P
The monochonal antibody stains Chlamydia inclusions both in formalin-fixed tissue biopts embedded in paraffin, and in Hela-229 cells fixed in absolute methanol.

For staining fixed cells or tissue sections a dilution of 1:20 in PBS is advised.