lytic murein transglycosylase B. This family consists of lytic murein transglycosylases (murein hydrolases) in the family of MltB, which is a membrane-bound lipoprotein in Escherichia coli. The N-terminal lipoprotein modification motif is conserved in about half the members of this family. The term Slt35 describes a naturally occurring soluble fragment of MltB. Members of this family never contain the putative peptidoglycan binding domain described by pfam01471, which is associated with several classes of bacterial cell wall lytic enzymes [Cell envelope, Biosynthesis and degradation of murein sacculus and peptidoglycan].

Membrane-bound lytic murein transglycosylase B [Cell envelope biogenesis, outer membrane]

lytic murein transglycosylase. Members of this family are closely related to the MltB family lytic murein transglycosylases described by TIGR02282 and are likewise all proteobacterial, although that family and this one form clearly distinct clades. Several species have one member of each family. Many members of this family (unlike the MltB family) contain an additional C-terminal domain, a putative peptidoglycan binding domain (pfam01471), not included in region described by this model. Many sequences appear to contain N-terminal lipoprotein attachment sites, as does E. coli MltB in TIGR02282 [Cell envelope, Biosynthesis and degradation of murein sacculus and peptidoglycan].

Transglycosylase SLT domain. This family is related to the SLT domain pfam01464.