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Literature summary for 3.2.1.21 extracted from

  • Painbeni, E.; Valles, S.; Polaina, J.; Flors, A.
    Purification and characterization of a Bacillus polymyxa beta-glucosidase expressed in Escherichia coli (1992), J. Bacteriol., 174, 3087-3091.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Paenibacillus polymyxa

Inhibitors

Inhibitors Comment Organism Structure
beta-D-glucose competitive inhibition, Ki: 19 mM Paenibacillus polymyxa
DTT 30% inhibition at 5 mM Paenibacillus polymyxa
Hg2+ strong inhibition at 1 mM Paenibacillus polymyxa
SDS 85% inhibition at 5 mM Paenibacillus polymyxa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.6
-
4-nitrophenyl-beta-D-glucopyranoside
-
Paenibacillus polymyxa
13
-
cellobiose
-
Paenibacillus polymyxa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
50000
-
SDS-PAGE Paenibacillus polymyxa

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 Paenibacillus polymyxa cellobiose beta-D-glucose + D-glucose additional product: cellotriose by transglycosylation activity r

Organism

Organism UniProt Comment Textmining
Paenibacillus polymyxa
-
-
-

Purification (Commentary)

Purification (Comment) Organism
to homogeneity, recombinant enzyme Paenibacillus polymyxa

Source Tissue

Source Tissue Comment Organism Textmining
additional information genomic library Paenibacillus polymyxa
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2417
-
-
Paenibacillus polymyxa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl beta-D-glucopyranoside + H2O
-
Paenibacillus polymyxa 4-nitrophenol + D-glucopyranose
-
?
4-O-beta-D-glucopyranosyl-D-glucose + H2O cellobiose Paenibacillus polymyxa beta-D-glucose + D-glucose additional product: cellotriose by transglycosylation activity r
cellobiose + H2O
-
Paenibacillus polymyxa 2 beta-D-glucose
-
?

Synonyms

Synonyms Comment Organism
BglA
-
Paenibacillus polymyxa