| ABM | Actin-based motility |
| A/E | Attaching and effacing |
| Ail | Attachment and invasion locus |
| C-ring | Cytoplasmic ring |
| FAK | Focal adhesion kinase |
| ECM | Extracellular matrix |
| EHEC | Enterohemorrhagic E. coli |
| EIEC | Enteroinvasive E. coli |
| EPEC | Enteropathogenic E. coli |
| Esp | E. coli secreted protein |
| Ics | Intercellular spread |
| IL | Interleukin |
| InvA | Invasin |
| Ipa | Invasion plasmid antigen |
| Ipg | Invasion plasmid gene |
| Lcr | Low calcium response |
| LEE | Locus of enterocyte effacement |
| M cell | Microfold cell |
| Mxi | Membrane expression of Ipa |
| Nle | Non-LEE effector |
| Sct | Secretion and cellular translocation |
| Sep | Secretion of E. coli proteins |
| Spa | Surface presentation of Ipa |
| SS | Secretion system |
| STEC | Shiga-toxigenic E. coli |
| T3SS | Type 3 secretion system |
| T5SS | Type 5 secretion system |
| TAA | Trimeric autotransporter adhesin |
| Tir | Translocated intimin receptor |
| N-WASP | Neural Wiskott–Aldrich syndrome protein |
| YadA | Yersinia adhesin A |
| Yop | Yersinia outer protein |
| Ysc | Yersinia secretion |