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Literature summary for 3.2.1.4 extracted from

  • Feng, Y.; Duan, C.J.; Pang, H.; Mo, X.C.; Wu, C.F.; Yu, Y.; Hu, Y.L.; Wei, J.; Tang, J.L.; Feng, J.X.
    Cloning and identification of novel cellulase genes from uncultured microorganisms in rabbit cecum and characterization of the expressed cellulases (2007), Appl. Microbiol. Biotechnol., 75, 319-328.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
overexpression in Escherichia coli uncultured microorganism

Inhibitors

Inhibitors Comment Organism Structure
CuCl2 82% inhibition uncultured microorganism
EDTA 53% inhibition uncultured microorganism
SDS 66% inhibition uncultured microorganism
ZnCl2 47% inhibition uncultured microorganism

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information Km-value for carboxymethyl cellulose is 16.07 mg/ml uncultured microorganism

Metals/Ions

Metals/Ions Comment Organism Structure
CaCl2 stimulation to 122% of control uncultured microorganism
CoCl2 stimulation to 137% of control uncultured microorganism
CrCl3 stimulation to 119% of control uncultured microorganism

Organism

Organism UniProt Comment Textmining
uncultured microorganism
-
in rabbit caecum
-

Purification (Commentary)

Purification (Comment) Organism
recombinant enzyme uncultured microorganism

Source Tissue

Source Tissue Comment Organism Textmining

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
carboxymethyl cellulose + H2O
-
uncultured microorganism ?
-
?
cellopentaose + H2O
-
uncultured microorganism cellobiose + cellotriose
-
?
cellotetraose + H2O
-
uncultured microorganism 2 cellobiose
-
?
cellotriose + H2O slightly degraded uncultured microorganism D-glucose + cellobiose
-
?
additional information no hydrolysis of cellobiose uncultured microorganism ?
-
?

Synonyms

Synonyms Comment Organism
umcel5G
-
uncultured microorganism

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55
-
-
uncultured microorganism

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
30 min, less than 10% loss of activity uncultured microorganism
55
-
unstable above uncultured microorganism

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6 6.5 substrate: carboxymethyl cellulose uncultured microorganism

pH Range

pH Minimum pH Maximum Comment Organism
3.5 10 weak activity at pH 10.0 and below pH 3.5, substrate: carboxymethyl cellulose uncultured microorganism
4.5 8 pH 4.5: about 60% of maximal activity, pH 8.0: about 40% of maximal activity uncultured microorganism

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 9 enzyme retains more than 90% activity after storage for 24 h at broad pH ranging from pH 5.0 to 9.0 uncultured microorganism