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Literature summary for 3.2.1.37 extracted from

  • Xu, W.Z.; Shima, Y.; Negoro, S.; Urabe, I.
    Sequence and properties of beta-xylosidase from Bacillus pumilus IPO. Contradiction of the previous nucleotide sequence (1991), Eur. J. Biochem., 202, 1197-1203.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Bacillus pumilus

Inhibitors

Inhibitors Comment Organism Structure
p-nitrophenyl beta-D-xyloside inhibition at 6.2 mM Bacillus pumilus
xylobiose inhibition at 45 mM Bacillus pumilus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.9
-
p-nitrophenyl beta-D-xyloside overexpressed enzyme Bacillus pumilus
8.9
-
xylobiose overexpressed enzyme Bacillus pumilus

Localization

Localization Comment Organism GeneOntology No. Textmining
intracellular
-
Bacillus pumilus 5622
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
190000
-
gel filtration, SDS-PAGE Bacillus pumilus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
xylobiose + H2O Bacillus pumilus
-
beta-D-xylose + D-xylose
-
?

Organism

Organism UniProt Comment Textmining
Bacillus pumilus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
to homogeneity by 6step chromatography techniques Bacillus pumilus

Source Tissue

Source Tissue Comment Organism Textmining
cell culture
-
Bacillus pumilus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
25.2
-
native enzyme Bacillus pumilus
28.3
-
overexpressed enzyme Bacillus pumilus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
p-nitrophenyl beta-D-xyloside + H2O
-
Bacillus pumilus p-nitrophenol + beta-D-xylose
-
?
xylobiose + H2O
-
Bacillus pumilus beta-D-xylose + D-xylose
-
?

Subunits

Subunits Comment Organism
oligomer tetramer or trimer of 3-4 identical subunits of 56000-62000, SDS-PAGE Bacillus pumilus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
-
Bacillus pumilus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
stable up to Bacillus pumilus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Bacillus pumilus