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3.2.1.17: lysozyme

This is an abbreviated version!
For detailed information about lysozyme, go to the full flat file.

Word Map on EC 3.2.1.17

Reaction

N,N',N'',N'''-tetraacetylchitotetraose
+
H2O
=
N,N',N''-triacetylchitotriose
 +
N-acetyl-D-glucosamine

Synonyms

1,4-beta-N-acetylmuramidase, 1,4-beta-N-acetylmuramidase 1, 1,4-beta-N-acetylmuramidase A/C, 1,4-beta-N-acetylmuramidase M1, 1,4-beta-N-acetylmuramoylhydrolase, 1,4-N-acetylmuramidase, abLysI, AcmB, ASTL, Autolysin, BA-lysozyme, c-type lysozyme, CCLys-g, CFL, chicken-type lysozyme, cLys3, CP-1 lysin, CP-7 lysin, CP-9 lysin, CPL, DEL-I, DEL-II, DEL-III, destabilase-lysozyme, EGL, Egyptian goose egg-white lysozyme, Egyptian goose lysozyme, endolysin, EQL, equine lysozyme, fOg44 endolysin, g-lysozyme, g-type lysozyme, GEWL, globulin G, globulin G1, goose type lysozyme, Goose-type lysozyme, gp144, gp36C, GSTL, HEWL, HLysG2, hLYZ, HLZ, i-type lysozyme, iLys, iLys2, invertebrate lysozyme, invertebrate type lysozyme, L-7001, LAL, lambda lysozyme, Late protein gp15, Lys-rich lysozyme 2, lysC, LYSC-1, LysG, LysgaY, LysGL, lysi1, lysi2, Lysis protein, Lysosyme, lysozym, Lysozyme, lysozyme 1, lysozyme 1 precursor, lysozyme A, lysozyme B, lysozyme c, lysozyme c-1, lysozyme g, lysozyme g-like 2, lysozyme SP0987, lysozyme-g, LYZ, LYZ2, M1L, Mdl1, MdL2, mlD-Ds1, mlD-Ds2, mlD-Ds3, MLL-A, MLL-B, mucopeptide glucohydrolase, mucopeptide N-acetylmuramic acid hydrolase, mucopeptide N-acetylmuramoylhydrolase, muramidase, mutanolysin, MV1 lysin, N,O-diacetylmuramidase, N-acetylglucosaminidase autolysin, N-acetylmuramic hydrolase, N-acetylmuramide glycanhydrolase, n-SalC, n-SalG, OEL, OHLysG1, OHLysG2, OHLysG3, Outer wedge of baseplate protein, P13, PALysG, Peptidoglycan hydrolase, peptidoglycan n-acetylmuramic hydrolase, phage-type like lysozyme, phiKZ endolysin, Ply3626, PR1-lysozyme, Protein gp17, Protein gp19, Protein Gp25, Protein Gp5, Protein gp54, Protein gpK, SalG, SjLys, SmLysC, SSTL A, SSTL B, T4 lysozyme, T4L, TJL, transglycosylase, VpLYZ, WGL, wood duck lysozyme

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.17 lysozyme

pH Optimum

pH Optimum on EC 3.2.1.17 - lysozyme

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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4.4
-
-
4.5 - 5.5
-
-
4.7
substrate: N,N',N''-triacetylchitotrioside
5 - 5.5
-
-
5 - 6
-
-
5 - 7
-
assay at
5 - 8
5.2 - 6
assay at
5.5 - 6
5.9
-
wild-type enzyme, lytic activity against Micrococcus lysodeikticus
6 - 7
6.3
-
assay at
6.6
the optimal assay conditions determined for the recombinant His-tagged protein are in 0.1M potassium phosphate buffer, pH 6.6 containing 1 mM CuCl2 at 25°C
6.8
-
at ionic strength 0.03
7 - 8
Lederbergvirus P22
-
-
7.5 - 8.5
-
-
7.6
Tequatrovirus T4
-
-
additional information
-
the acidic pH optimum for MdL2 and MdL1 activities upon methylumbelliferylchitotrioside is determined by the presence of N46, S106 and T107 in the environment of their catalytic residues, which favors pKas reduction. The acidic pH optimum upon bacterial walls is determined by a low concentration of positive charges on the MdL2 and MdL1 surfaces