Figure 6.

CspA^vvu is a CSP that causes transcription antitermination. Top, the E. coli cspABEG quadruple mutant with pBAD24::vv12532 or the empty vector were streaked on plates containing L-ara and were incubated at the indicated temperatures. Bottom, E. coli RL211 cells containing a cat gene cassette positioned downstream of the trpL terminator were transformed with pBAD24::cspA^vvu and streaked on plates containing 25 µg/ml chloramphenicol and arabinose. Plates were incubated overnight at 37°C.