Supplementary Table 1.

List of bacterial strains utilized in this work.

Strain/Name	Characteristics/Sequence	Source/Reference
V. cholerae O395	Wild-type Classical Ogawa	John Mekalanos (Harvard Medical School)
V. cholerae C6706	Wild-type El Tor Inaba	Christopher Waters (Michigan State Univ.)
DB364	V. cholerae O395 pGW104	This work