TABLE 2.

Accumulation of cAMP, after 2 and 4 h, as an indication of sopD translocation by different S. dublin strains^a

Strain	cAMP produced (pmol) per well at:
	2 h	4 h
S. dublin 2229	0.2 ± 0.08	0.50 ± 0.14
S. dublin 2229(pMJ600)	3.16 ± 1.16	3.5 ± 1.3
S. dublin B1	0.26 ± 0.23	0.45 ± 0.18
S. dublin B1(pMJ600)	0.53 ± 0.09	0.5 ± 0.14
No infection	0.55 ± 0.32	<0.1

^aHeLa cells were infected with S. dublin 2229, 2229(pMJ600), B1, and B1(pMJ600). A control of uninfected cells was used. The cAMP values (in picomoles ± standard deviations) are averages from three samples wells.