Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, Signal transduction mechanisms].

membrane-bound lytic murein transglycosylase MltF.

membrane-bound lytic murein transglycosylase F (MLTF) and similar proteins. This subfamily includes membrane-bound lytic murein transglycosylase F (MltF, murein lyase F) that degrades murein glycan strands. It is responsible for catalyzing the release of 1,6-anhydromuropeptides from peptidoglycan. Lytic transglycosylase catalyzes the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc) as do goose-type lysozymes. However, in addition, it also makes a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue.

The solute binding domain of YfhD proteins, a member of the type 2 periplasmic binding fold protein superfamily. This subfamily includes the solute binding domain YfhD_N. These domains are found in the YfhD proteins that are predicted to function as lytic transglycosylases that cleave the glycosidic bond between N-acetylmuramic acid and N-acetylglucosamin in peptidoglycan, while the YfhD_N domain might act as an auxiliary or regulatory subunit. In addition to periplasmic solute binding domain, they have an SLT domain, typically found in soluble lytic transglycosylases, and a C-terminal low complexity domain. The YfhD proteins might have been recruited to create localized cell wall openings required for transport of large substrates such as DNA. They belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.

Bacterial periplasmic substrate-binding proteins. bacterial proteins, eukaryotic ones are in PBPe

1.95Angstrom Resolution Crystal Structure of Fragment (35-274) of Membrane-bound Lytic Murein Transglycosylase F from Yersinia pestis. [Yersinia pestis],5UH0_B 1.95 Angstrom Resolution Crystal Structure of Fragment (35-274) of Membrane-bound Lytic Murein Transglycosylase F from Yersinia pestis. [Yersinia pestis]

Crystalstructure of MltF from Pseudomonas aeruginosa complexed with isoleucine [Pseudomonas aeruginosa PAO1]

Crystalstructure of MltF from Pseudomonas aeruginosa complexed with cysteine [Pseudomonas aeruginosa PAO1],4OXV_A Crystal structure of MltF from Pseudomonas aeruginosa complexed with valine [Pseudomonas aeruginosa PADK2_CF510],4P0G_A Crystal structure of MltF from Pseudomonas aeruginosa complexed with bulgecin and muropeptide [Pseudomonas aeruginosa PAO1],4P11_A Native crystal structure of MltF Pseudomonas aeruginosa [Pseudomonas aeruginosa PAO1]

Crystalstructure of MltF from Pseudomonas aeruginosa in complex with NAM-pentapeptide. [Pseudomonas aeruginosa BWHPSA013],5AA2_C Crystal structure of MltF from Pseudomonas aeruginosa in complex with NAM-pentapeptide. [Pseudomonas aeruginosa BWHPSA013]

Crystalstructure of MltF from Pseudomonas aeruginosa complexed with leucine [Pseudomonas aeruginosa PAO1]

Membrane-bound lytic murein transglycosylase F OS=Erwinia tasmaniensis (strain DSM 17950 / CFBP 7177 / CIP 109463 / NCPPB 4357 / Et1/99) OX=465817 GN=mltF PE=3 SV=1

Membrane-bound lytic murein transglycosylase F OS=Yersinia enterocolitica serotype O:8 / biotype 1B (strain NCTC 13174 / 8081) OX=393305 GN=mltF PE=3 SV=1

Membrane-bound lytic murein transglycosylase F OS=Serratia proteamaculans (strain 568) OX=399741 GN=mltF PE=3 SV=2

Membrane-bound lytic murein transglycosylase F OS=Yersinia pseudotuberculosis serotype O:3 (strain YPIII) OX=502800 GN=mltF PE=3 SV=2

Membrane-bound lytic murein transglycosylase F OS=Yersinia pestis OX=632 GN=mltF PE=1 SV=1