locus-tag	class	description
MUTTLIE_16	GO:0016021	integral component of membrane
MUTTLIE_16	GO:0005886	plasma membrane
MUTTLIE_16	GO:0046872	metal ion binding
MUTTLIE_16	GO:0008237	metallopeptidase activity
MUTTLIE_17	GO:0005576	extracellular region
MUTTLIE_17	GO:0008745	N-acetylmuramoyl-L-alanine amidase activity
MUTTLIE_17	GO:0071555	cell wall organization
MUTTLIE_17	GO:0030420	establishment of competence for transformation
MUTTLIE_17	GO:0009253	peptidoglycan catabolic process
MUTTLIE_17	GO:0009254	peptidoglycan turnover
MUTTLIE_17	GO:0030435	sporulation resulting in formation of a cellular spore