. 2001 Nov;183(21):6487–6490. doi: 10.1128/JB.183.21.6487-6490.2001

TABLE 1.

Effects of excess MutS⁺ on VSP repair

Strain	Relevant genotype or (phenotype)	% cI⁺^a
Strain	Relevant genotype or (phenotype)	No plasmid	With pMutS⁺
CC106	mutS⁺mutL⁺vsr⁺	3.2	2.3
GM30	mutS⁺mutL⁺vsr⁺	3.1^b	1.6^b
GM31	GM30 dcm-6 (Vsr⁻)	0.49^b	0.18^b
SP1	mutS::Tn10 mutL⁺vsr⁺	0.83	1.1
KMBL3752	mutS⁺mutL⁺vsr⁺	5.0	3.9
KMBL3760	mutS⁺mutL-101 vsr⁺	0.64	0.34

The values are percentages of cI⁺ among N⁺O⁺ recombinants in a cross of λNcIam6 O⁺ with λN⁺ cICP7 O and are averages of results from two or more experiments. During recombination, heteroduplexes containing T · G mismatches are generated which are repaired by VSP repair to create cI⁺ phage. Thus, a higher percentage of cI⁺ indicates more VSP repair (see references 12 and 15). Plasmid pMutS⁺ has been described previously (21).

Value from reference 15.