Table 1.

Correlation between leuB mRNA levels determined as described for Fig. 2 and leuB− reversion rates

Cells	relA genotype	Condition	pg leuB mRNA/ :μg of total RNA	leuB− reversion rate × 10−9
CP79	relA	unstarved	29  ± 5	*
CP78	relA+	unstarved	30  ± 5	*
CP79	relA	−arg then − leu	17  ± 6	0.15  ± 0.02
CP79	relA	−leu	17  ± 5	0.22  ± 0.08†
CP79pyrD	relA	−arg then − leu	28  ± 5	0.25  ± 0.06‡
CP79pyrD	relA	−leu	35  ± 12	0.44  ± 0.12‡
CP79ΔspoT207	relA	−leu	126  ± 11	0.60  ± 0.11§
CP78pyrD	relA+	−leu	285  ± 103	1.26  ± 0.26‡
CP78	relA+	−leu	269  ± 60	1.47  ± 0.48†
CP78	relA+	−arg then − leu	335  ± 53	1.80  ± 0.30
CP78pyrD	relA+	−arg then − leu	347  ± 136	2.30  ± 0.70‡
CP79spoT203	relA	−leu	378  ± 149	2.50  ± 0.62§

^*Not measurable. 

^†Ref. 24. 

^‡Ref. 31. 

^§Ref. 25.