6.3.2.7	A409R	site-directed mutagenesis, the lytic phenotype observed upon overexpression of the wild-type murESa gene is replicated with the mutant	727964	
6.3.2.7	D406A	site-directed mutagenesis, the mutant shows very low or no activity in vivo	727964	
6.3.2.7	E460A	site-directed mutagenesis, the mutant shows very low or no activity in vivo	727964	
6.3.2.7	N407A	site-directed mutagenesis, inactive mutant	727964	
6.3.2.7	N407R	site-directed mutagenesis, the growth curve of N407R mutant is similar to that of wild-type murESa	727964	
6.3.2.7	P408A	site-directed mutagenesis, the lytic phenotype observed upon overexpression of the wild-type murESa gene is replicated with the mutant	727964