| Basic Characteristics | Properties (Chlamydia trachomatis) |
| Organism Type | Obligate intracellular organism that parasitize and multiply in the cytoplasm of eukaryotic cells within membrane bound vacuoles, termed inclusions, by a unique developmental cycle. |
| ATP/ADP Transport System | Negative (-ve) |
| Body Types | Elementary and Reticulate |
| Flagella | Absent |
| Gram Staining | Gram-negative |
| Genus Specific Antigen | Positive (+ve) |
| Motility | Negative (-ve) |
| Projections on Surface | Positive (+ve) |
| Shape | Coccoid; 0.2-1.5 Um diameter |
| Arginine | Negative (-ve) |
| Cysteine | Negative (-ve) |
| Glutamine | Variable |
| Histidine | Positive (+ve) |
| Isoleucine | Negative (-ve) |
| Leucine | Variable |
| Lysine | Negative (-ve) |
| Methionine | Variable |
| Phenylalanine | Positive (+ve) |
| Threonine | Negative (-ve) |
| Tryptophan | Variable |
| Tyrosine | Negative (-ve) |
| Valine | Positive (+ve) |
| Glucose-6-P (ATP-dependent liberation of CO2 ) | Positive (+ve) |
| Glutamate (ATP-dependent liberation of CO2 ) | Positive (+ve) |
| Pyruvate (ATP-dependent liberation of CO2 ) |