| ECA | Enterobacterial common antigen |
| c[ECA]n | Cyclic ECA composed of n repeating units |
| [ECA]n | Linear ECA composed of n repeating units |
| ECAPG | Phosphoglyceride-linked ECA |
| ECACYC | Cyclic ECA |
| ECALPS | Lipopolysaccharide-associated ECA |
| ESI-IT MS | Electrospray ionization-ion trap mass spectrometry |
| LPS | Lipopolysaccharide |
| MALDI-TOF MS | Matrix-assisted laser-desorption/ionization-time of flight mass spectrometry |
| MS | Mass spectrometry |
| NAc | N-acetyl group |
| NMR | nuclear magnetic resonance (spectroscopy) |
| OAc | O-acetyl group |
| PCP | phenol-chloroform-petroleum (extraction) |
| ZIC®HILIC | zwitterionic-hydrophilic interaction liquid chromatography |
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