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Literature summary for 3.2.1.21 extracted from

  • Murao, S.; Sakamoto, R.; Arai, M.
    Cellulases of Aspergillus aculeatus (1988), Methods Enzymol., 160, 274-299.
No PubMed abstract available

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
132000
-
beta-glucosidase 2, gel filtration Aspergillus aculeatus
133000
-
beta-glucosidase 1, gel filtration Aspergillus aculeatus
136000
-
beta-glucosidase 3, gel filtration Aspergillus aculeatus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
4-O-beta-D-glucopyranosyl-D-glucose + H2O Aspergillus aculeatus cellobiose beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O Aspergillus aculeatus low activity for beta-glucosidase 3 beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O Aspergillus aculeatus NO. F-50 cellobiose beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O Aspergillus aculeatus NO. F-50 low activity for beta-glucosidase 3 beta-D-glucose + D-glucose
-
?
cellohexaose + 5 H2O Aspergillus aculeatus low activity for beta-glucosidase 3 6 D-glucose
-
?
cellopentaose + 4 H2O Aspergillus aculeatus low activity for beta-glucosidase 3 5 D-glucose
-
?
cellotetraose + 3 H2O Aspergillus aculeatus low activity for beta-glucosidase 3 4 D-glucose
-
?
cellotriose + 2 H2O Aspergillus aculeatus low activity for beta-glucosidase 3 3 D-glucose
-
?
insoluble cellooligosaccharaide + H2O Aspergillus aculeatus beta-glucosidase 3 less active beta-D-glucose + ?
-
?

Organism

Organism UniProt Comment Textmining
Aspergillus aculeatus
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein
-
Aspergillus aculeatus

Purification (Commentary)

Purification (Comment) Organism
further purification of a cellulase preparation, chromatography steps, to homogeneity Aspergillus aculeatus

Source Tissue

Source Tissue Comment Organism Textmining
commercial preparation
-
Aspergillus aculeatus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(2-hydroxymethylphenyl)-beta-D-glucopyranoside + H2O salicin Aspergillus aculeatus 2-hydroxymethylphenol + beta-D-glucose
-
?
(2-hydroxymethylphenyl)-beta-D-glucopyranoside + H2O lower activity for beta-glucosidase 3 Aspergillus aculeatus 2-hydroxymethylphenol + beta-D-glucose
-
?
(2-hydroxymethylphenyl)-beta-D-glucopyranoside + H2O salicin Aspergillus aculeatus NO. F-50 2-hydroxymethylphenol + beta-D-glucose
-
?
(2-hydroxymethylphenyl)-beta-D-glucopyranoside + H2O lower activity for beta-glucosidase 3 Aspergillus aculeatus NO. F-50 2-hydroxymethylphenol + beta-D-glucose
-
?
4-nitrophenyl beta-D-glucopyranoside + H2O
-
Aspergillus aculeatus 4-nitrophenol + D-glucopyranose
-
?
4-nitrophenyl beta-D-glucopyranoside + H2O
-
Aspergillus aculeatus NO. F-50 4-nitrophenol + D-glucopyranose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O cellobiose Aspergillus aculeatus beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O low activity for beta-glucosidase 3 Aspergillus aculeatus beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O cellobiose Aspergillus aculeatus NO. F-50 beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O low activity for beta-glucosidase 3 Aspergillus aculeatus NO. F-50 beta-D-glucose + D-glucose
-
?
cellohexaose + 5 H2O low activity for beta-glucosidase 3 Aspergillus aculeatus 6 D-glucose
-
?
cellopentaose + 4 H2O low activity for beta-glucosidase 3 Aspergillus aculeatus 5 D-glucose
-
?
cellotetraose + 3 H2O low activity for beta-glucosidase 3 Aspergillus aculeatus 4 D-glucose
-
?
cellotriose + 2 H2O low activity for beta-glucosidase 3 Aspergillus aculeatus 3 D-glucose
-
?
insoluble cellooligosaccharaide + H2O beta-glucosidase 3 less active Aspergillus aculeatus beta-D-glucose + ?
-
?
methyl-beta-D-glucoside + H2O low activity for beta-glucosidase 3 Aspergillus aculeatus beta-D-glucose + methanol
-
?
methylumbelliferyl-beta-D-glucopyranoside + H2O
-
Aspergillus aculeatus methylumbelliferone + beta-D-glucose
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55
-
beta-glucosidase 1 Aspergillus aculeatus
60
-
beta-glucosidase 2 Aspergillus aculeatus
65
-
beta-glucosidase 3 Aspergillus aculeatus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
stable up to, beta-glucosidases 1 and 2 Aspergillus aculeatus
60
-
stable up to, beta-glucosidase 3 Aspergillus aculeatus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
3
-
beta-glucosidase 3 Aspergillus aculeatus
4.5
-
beta-glucosidases 1 and 2 Aspergillus aculeatus

pH Stability

pH Stability pH Stability Maximum Comment Organism
2.5 6 stable within, beta-glucosidase 3 Aspergillus aculeatus
3 7 stable within, beta-glucosidase 2 Aspergillus aculeatus
3.5 7 stable within, beta-glucosidase 1 Aspergillus aculeatus