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Literature summary for 3.2.1.91 extracted from

  • Gavlighi, H.A.; Meyer, A.S.; Mikkelsen, J.D.
    Enhanced enzymatic cellulose degradation by cellobiohydrolases via product removal (2013), Biotechnol. Lett., 35, 205-212 .
    View publication on PubMed

Application

Application Comment Organism
degradation combined use of isoforms CBH A and Cbh C on degradation of cotton. Conversion after 72 h is about 19 % by weight, with an almost fourfold increase in enzymatic hydrolysis yield by intermittent product removal of cellobiose with membrane filtration. A synergistic effect, achieving about 27 % substrate conversion, is obtained by addition of endo-1,4-beta-D-glucanase Aspergillus nidulans

Cloned(Commentary)

Cloned (Comment) Organism
expression in Pichia pastoris Aspergillus nidulans

Organism

Organism UniProt Comment Textmining
Aspergillus nidulans Q5B2E8 isdoform Cbh C
-
Aspergillus nidulans Q8NK02 isdoform Cbh B
-
Aspergillus nidulans ATCC 38163 Q5B2E8 isdoform Cbh C
-
Aspergillus nidulans ATCC 38163 Q8NK02 isdoform Cbh B
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
26
-
substrate 4-methylumbelliferyl beta-D-lactoppyranoside, pH 5.0, 50°C Aspergillus nidulans
41
-
substrate 4-methylumbelliferyl beta-D-cellobioside, pH 5.0, 50°C Aspergillus nidulans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylumbelliferyl beta-D-cellobioside + H2O
-
Aspergillus nidulans 4-methylumbelliferone + cellobiose
-
?
4-methylumbelliferyl beta-D-cellobioside + H2O
-
Aspergillus nidulans ATCC 38163 4-methylumbelliferone + cellobiose
-
?
4-methylumbelliferyl beta-D-lactopyranoside + H2O
-
Aspergillus nidulans 4-methylumbelliferone + lactose
-
?
4-methylumbelliferyl beta-D-lactopyranoside + H2O
-
Aspergillus nidulans ATCC 38163 4-methylumbelliferone + lactose
-
?
avicel + H2O
-
Aspergillus nidulans cellobiose + ?
-
?
avicel + H2O
-
Aspergillus nidulans ATCC 38163 cellobiose + ?
-
?
cellulose + H2O
-
Aspergillus nidulans cellobiose + ?
-
?
cellulose + H2O
-
Aspergillus nidulans ATCC 38163 cellobiose + ?
-
?
additional information no activity with 4-methylumbelliferyl beta-D-lactopyranoside or 4-methylumbelliferyl beta-D-cellobioside Aspergillus nidulans ?
-
?
additional information no activity with 4-methylumbelliferyl beta-D-lactopyranoside or 4-methylumbelliferyl beta-D-cellobioside Aspergillus nidulans ATCC 38163 ?
-
?

Synonyms

Synonyms Comment Organism
Cbh C
-
Aspergillus nidulans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
46
-
-
Aspergillus nidulans
52
-
-
Aspergillus nidulans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.8
-
-
Aspergillus nidulans
4.8 6.2
-
Aspergillus nidulans