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| Chlamydiaceae | |
|---|---|
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| Chlamydia trachomatis inclusion bodies (brown) in a McCoy cell culture | |
Scientific classification 
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| Domain: | Bacteria |
| Phylum: | Chlamydiota |
| Class: | Chlamydiia |
| Order: | Chlamydiales |
| Family: | Chlamydiaceae Rake 1957 |
| Genera | |
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The Chlamydiaceae are a family of gram-negative bacteria that belongs to the phylum Chlamydiota, order Chlamydiales. Chlamydiaceae species express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo (previously called the genus-specific epitope). Chlamydiaceae ribosomal RNA genes all have at least 90% DNA sequence identity. Chlamydiaceae species have varying inclusion morphology, varying extrachromosomal plasmid content, and varying sulfadiazine resistance.
The family Chlamydiaceae currently includes one genus and one candidate genus: Chlamydia and candidatus Clavochlamydia.[1]