3D (Asp-Asp-Asp) domain [Function unknown].

Non-mltA associated 3D domain containing proteins, named for 3 conserved aspartate residues. This family contains the 3D domain, named for its 3 conserved aspartates, including similar uncharacterized proteins. These proteins contain the critical active site aspartate of mltA-like lytic transglycosylases where the 3D domain forms a larger domain with the N-terminal region. This domain is also found in conjunction with numerous other domains such as the Escherichia coli MltA, a membrane-bound lytic transglycosylase comprised of 2 domains separated by a large groove, where the peptidoglycan strand binds. Domain A is made up of an N-terminal and a C-terminal portion, corresponding to the 3D domain and Domain B is inserted within the linear sequence of domain A. MltA is distinct from other bacterial LTs, which are similar to each other. Escherichia coli peptidoglycan lytic transglycosylase (LT) initiates cell wall recycling in response to damage, during bacterial fission, and cleaves peptidoglycan (PG) to create functional spaces in its wall. PG chains (also known as murein), the major components of the bacterial cell wall, are comprised of alternating beta-1-4-linked N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc), and lytic transglycosylases cleave this beta-1-4 bond.

3D domain, named for 3 conserved aspartate residues, is found in mltA-like lytic transglycosylases and numerous other contexts. This family contains the 3D domain, named for its 3 conserved aspartates. It is found in conjunction with numerous other domains such as MltA (membrane-bound lytic murein transglycosylase A). These aspartates are critical active site residues of mltA-like lytic transglycosylases. Escherichia coli peptidoglycan lytic transglycosylase (LT) initiates cell wall recycling in response to damage, during bacterial fission, and cleaves peptidoglycan (PG) to create functional spaces in its wall. MltA has 2 domains, separated by a large groove, where the peptidoglycan strand binds. The C-terminus has a double-psi beta barrel fold within the 3D domain, which forms the larger A domain along with the N-terminal region of Mlts, but is also found in various other domain architectures. Peptigoglycan (also known as murein) chains, the primary structural component of bacterial cells walls, are comprised of alternating beta-1-4-linked N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc); lytic transglycosylases (LTs) cleave this beta-1-4 bond. Typically, LTs are exolytic, releasing Metabolite 1 (GlcNAc-anhMurNAc-L-Ala-D-Glu-m-Dap-D-Ala-D-Ala) from the ends of the PG strands. In contrast, membrane-bound lytic murein transglycosylase E (MltE) is endolytic , cleaving in the middle of PG strands, with further processing to Metabolite 1 accomplished by other LTs. In E. coli, there are six membrane- bound LTs: MltA-MltF and soluble Slt70. Slt35 is a soluble fragment cleaved from MltB. Bacterial LTs are classified in 4 families: Family 1 includes slt70 MltC-MltF, Family 2 includes MltA, Family 3 includes MltB, and family 4 of bacteriophage origin. While most LTs are related members of the lysozyme-like lytic transglycosylase family, MltA represents a distinct fold and sequence conservation.

1,4-beta-N-acetylmuramoylhydrolase.

1,4-beta-N-acetylmuramoylhydrolase.

StationaryPhase Survival Protein YuiC from B.subtilis [Bacillus subtilis subsp. subtilis str. 168]

StationaryPhase Survival Protein YuiC from B.subtilis complexed with reaction product [Bacillus subtilis subsp. subtilis str. 168],4WLK_B Stationary Phase Survival Protein YuiC from B.subtilis complexed with reaction product [Bacillus subtilis subsp. subtilis str. 168]

StationaryPhase Survival Protein YuiC from B.subtilis complexed with NAG [Bacillus subtilis subsp. subtilis str. 168],4WJT_B Stationary Phase Survival Protein YuiC from B.subtilis complexed with NAG [Bacillus subtilis subsp. subtilis str. 168]

Solutionstructure of LysM the peptidoglycan binding domain of autolysin AtlA from Enterococcus faecalis [Enterococcus faecalis V583]

Cell wall-binding protein YocH OS=Bacillus subtilis (strain 168) OX=224308 GN=yocH PE=1 SV=1

Putative cell wall shaping protein YabE OS=Bacillus subtilis (strain 168) OX=224308 GN=yabE PE=2 SV=2

Probable peptidoglycan endopeptidase LytE OS=Bacillus subtilis (strain 168) OX=224308 GN=lytE PE=1 SV=1

Muramidase-2 OS=Enterococcus hirae (strain ATCC 9790 / DSM 20160 / JCM 8729 / LMG 6399 / NBRC 3181 / NCIMB 6459 / NCDO 1258 / NCTC 12367 / WDCM 00089 / R) OX=768486 GN=EHR_05900 PE=1 SV=1

D-gamma-glutamyl-meso-diaminopimelic acid endopeptidase CwlS OS=Bacillus subtilis (strain 168) OX=224308 GN=cwlS PE=1 SV=1