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Literature summary for 3.2.1.21 extracted from

  • Honda, H.; Saito, T.; Iijima, S.; Kobayashi, T.
    Molecular cloning and expression of a beta-glucosidase gene from Ruminococcus albus in Escherichia coli (1988), Enzyme Microb. Technol., 10, 559-562.
No PubMed abstract available

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Ruminococcus albus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
85000
-
gel filtration Ruminococcus albus

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 Ruminococcus albus cellobiose beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O Ruminococcus albus activity 60fold less than for 4-nitrophenyl-beta-D-glucopyranoside beta-D-glucose + D-glucose
-
?

Organism

Organism UniProt Comment Textmining
Ruminococcus albus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
to homogeneity, recombinant enzyme Ruminococcus albus

Source Tissue

Source Tissue Comment Organism Textmining
additional information
-
Ruminococcus albus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylumbelliferyl-beta-D-cellobioside + H2O
-
Ruminococcus albus 4-methylumbelliferone + beta-D-glucose
-
?
4-methylumbelliferyl-beta-D-glucoside + H2O
-
Ruminococcus albus 4-methylumbelliferone + beta-D-glucose
-
?
4-nitrophenyl beta-cellobioside + 2 H2O
-
Ruminococcus albus 4-nitrophenol + 2 beta-D-glucose
-
?
4-nitrophenyl beta-D-glucopyranoside + H2O best substrate Ruminococcus albus 4-nitrophenol + D-glucopyranose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O cellobiose Ruminococcus albus beta-D-glucose + D-glucose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O activity 60fold less than for 4-nitrophenyl-beta-D-glucopyranoside Ruminococcus albus beta-D-glucose + D-glucose
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
-
Ruminococcus albus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6 6.5
-
Ruminococcus albus