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. 1999 Apr;181(7):2148–2157. doi: 10.1128/jb.181.7.2148-2157.1999

TABLE 2.

Phage burst sizes on ssrA and clpP mutant strains

No.	Strain	Relevant alleles	Location of relevant ssrA allele	λimm^P22hy25 burst	Fold increase over ssrA::cat^a	λimm^P22dis burst	Fold increase over ssrA::cat^a
1	K37	ssrA⁺ clpP⁺	Normal site	210 ± 36	1,750	160 ± 10	2,500
2	K8619	ssrA::cat clpP⁺	Normal site	0.12 ± 0.08		0.064 ± 0.044
3	K8664	ssrA⁺ clpP⁺	λatt	120 ± 31	1,000	110 ± 43	1,720
4	K8637	ssrA^O clpP⁺	λatt	95 ± 30	790	2.2 ± 1.4	34
5	K8666	ssrA^DD clpP⁺	λatt	50 ± 8.5	420	2.4 ± 1.4	38
6	K8668	ssrA::cat clpP⁺	Normal site	0.078 ± 0.061	0.65	0.021 ± 0.025	0.33
7	K8814	ssrA^UG clpP⁺	Plasmid	0.098 ± 0.082	0.82	0.036 ± 0.041	0.56
8	K8465	ssrA⁺ clpP::kan	Normal site	90 ± 14	750	78 ± 23	1,220
9	K8857	ssrA::cat clpP::kan	Normal site	52 ± 33	430	1.2 ± 0.36	19
10	K9281	ssrA^O clpP::kan	λatt	ND^b	ND	94 ± 28	1,470
11	K9282	ssrA^DD clpP::kan	λatt	ND	ND	71 ± 29	1,110

^a

The indicated burst sizes were divided by the burst size measured for the ssrA::cat strain, K8619.

^b

ND, not determined.