TABLE 1.

The ability of plasmid-borne mraY alleles to protect against E-mediated lysis defines different levels of E-binding

MraY protein	Position of E-resistance mutation	Protection at A550 = 0.2	Protection at A550 = 0.5	Apparent affinity for E
MraY		No	Yes	+++
MraYD267N		No	Yes
BsMraY		Yes	Yes	−/+
BsMraYD231N		No	No
MraYG186S	TMD5	No	Yes	+++
MraYG186S, D267N		No	Yes
MraYV291M	TMD9	No	Yes	+++
MraYD267N, V291M		No	Yes
MraYΔL172	TMD5	No	Yes	+
MraYΔL172, D267N		No	No
MraYP170L	TMD5	No	Yes	+
MraYP170L, D267N		No	No
MraYF288L	TMD9	Yes	Yes	−/+
MraYD267N, F288L		No	No