TABLE 4.

Induction of clp′-bgaB and groES′-bgaB expression by heat shock

Strain	Promoter	β-Galactosidase sp act (nmol of ONP/min/mg of protein)		Ratio
		37°C	48°C
QB8070	PclpP	35	1,200	34
QB8071	PclpC	20	520	26
QB8135	PclpE	80	1,600	20
QB8133	PgroES	110	3,500	32