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Literature summary for 3.2.1.92 extracted from

  • Del Rio, L.A.; Berkeley, R.C.W.
    exo-beta-N-Acetylmuramidase - a novel hexosaminidase. Production by Bacillus subtilis B, purification and characterization (1976), Eur. J. Biochem., 65, 3-12.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
2-acetamido-2-deoxy-D-galactose
-
Bacillus subtilis
2-acetamido-2-deoxy-D-glucose
-
Bacillus subtilis
2-acetamido-2-deoxy-D-mannose
-
Bacillus subtilis
2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-D-glucose MurAc, 1 mM, activity 76,9% Bacillus subtilis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.19
-
4-Methylumbelliferyl-2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose
-
Bacillus subtilis
0.65
-
O-[2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucopyranosyl]-(1-4)-2-acetamido-2-deoxy-D-glucose
-
Bacillus subtilis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
90000
-
estimated by SDS-PAGE, purified enzyme Bacillus subtilis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Bacillus subtilis hydrolysis of terminal, non-reducing N-acetylmuramic residues ?
-
?
additional information Bacillus subtilis B hydrolysis of terminal, non-reducing N-acetylmuramic residues ?
-
?

Organism

Organism UniProt Comment Textmining
Bacillus subtilis
-
B
-
Bacillus subtilis B
-
B
-

Purification (Commentary)

Purification (Comment) Organism
-
Bacillus subtilis

Source Tissue

Source Tissue Comment Organism Textmining
culture medium
-
Bacillus subtilis
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
24.2
-
-
Bacillus subtilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylumbelliferyl-2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose + H2O
-
Bacillus subtilis 4-methylumbelliferone + 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose
-
?
4-methylumbelliferyl-2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose + H2O
-
Bacillus subtilis B 4-methylumbelliferone + 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose
-
?
additional information hydrolysis of terminal, non-reducing N-acetylmuramic residues Bacillus subtilis ?
-
?
additional information hydrolysis of terminal, non-reducing N-acetylmuramic residues Bacillus subtilis B ?
-
?
O-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1-4)-2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-D-glucose + H2O
-
Bacillus subtilis 2-acetamido-2-deoxy-beta-D-glucopyranose + 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-D-glucose
-
?
O-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1-4)-2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-D-glucose + H2O
-
Bacillus subtilis B 2-acetamido-2-deoxy-beta-D-glucopyranose + 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-D-glucose
-
?
O-[2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucopyranosyl]-(1-4)-2-acetamido-2-deoxy-D-glucose + H2O
-
Bacillus subtilis 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose + 2-acetamido-2-deoxy-D-glucose
-
?
O-[2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucopyranosyl]-(1-4)-2-acetamido-2-deoxy-D-glucose + H2O
-
Bacillus subtilis B 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucose + 2-acetamido-2-deoxy-D-glucose
-
?

pH Stability

pH Stability pH Stability Maximum Comment Organism
8
-
most stable at Bacillus subtilis