. 2001 Feb 13;98(5):2250–2255. doi: 10.1073/pnas.041593698

Table 1.

Disk diffusion assay

Peptide	ZOI, mm
GpA	31–32
GpA (G83I)	36–37
L₁₃	33–34
L₁₉	34–35
L₇NL₁₁	30–31
L₇DL₁₁	29–30
L₇EL₁₁	30
L₇HL₁₁	31–32
L₇SL₁₁	34–35
L₇YL₁₁	33–34
L₇TL₁₁	34

Values represent diameter measurements of circular zones of inhibition (ZOI) around the chloramphenicol disk devoid of bacterial growth. The concentration of chloramphenicol in the solid medium diminishes with increasing distance from the disk. Small ZOIs indicate chloramphenicol-resistant bacteria and higher CAT activity.