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Literature summary for 3.2.1.188 extracted from

  • Gus-Mayer, S.; Brunner, H.; Schneider-Poetsch, H.A.
    Rüdiger, W.: Avenacosidase from oat: purification, sequence analysis and biochemical characterization of a new member of the BGA family of beta-glucosidases (1994), Plant Mol. Biol., 26, 909-921.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
etioplast
-
Avena sativa 9513
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
60000
-
5 or 6 * 60000, SDS-PAGE Avena sativa
300000 350000 gel filtration Avena sativa

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
avenacoside A + H2O Avena sativa
-
26-desgluco-avenacoside A + D-glucose
-
?
avenacoside B + H2O Avena sativa
-
26-desgluco-avenacoside B + D-glucose
-
?

Organism

Organism UniProt Comment Textmining
Avena sativa
-
cultivar Pirol
-

Purification (Commentary)

Purification (Comment) Organism
ammonium sulfate precipitation, hydroxyapatite column chromatography, and Biogel A1.5 gel filtration Avena sativa

Source Tissue

Source Tissue Comment Organism Textmining
caryopsis
-
Avena sativa
-
coleoptile
-
Avena sativa
-
leaf primary leaves Avena sativa
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.72
-
purified enzyme, using 4-nitrophenyl-beta-D-glucoside as substrate at pH 5.4 and 34°C Avena sativa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3-nitrophenyl beta-D-galactopyranoside + H2O
-
Avena sativa 3-nitrophenol + beta-D-galactopyranose
-
?
3-nitrophenyl beta-D-glucopyranoside + H2O
-
Avena sativa 3-nitrophenol + D-glucopyranose
-
?
4-nitrophenyl beta-D-fucoside + H2O highest activity Avena sativa 4-nitrophenol + D-fucose
-
?
4-nitrophenyl beta-D-galactoside + H2O
-
Avena sativa 4-nitrophenol + D-galactose
-
?
4-nitrophenyl beta-D-glucoside + H2O
-
Avena sativa 4-nitrophenol + D-glucose
-
?
4-nitrophenyl beta-D-xylopyranoside + H2O lowest activity Avena sativa 4-nitrophenol + D-xylose
-
?
avenacoside A + H2O
-
Avena sativa 26-desgluco-avenacoside A + D-glucose
-
?
avenacoside B + H2O
-
Avena sativa 26-desgluco-avenacoside B + D-glucose
-
?
additional information no activity with alpha-glycosides, beta-thioglucoside,cellobiose (beta1-4), gentiobiose (beta 1-6), laminaribiose (beta1-3), alpha-sophorose (beta1-2), 4-nitrophenyl-beta-D-xyloside, 3-nitrophenyl-beta-D-cellobioside, 4-nitrophenyl-alpha-D-glucoside, 4-nitrophenyl-alpha-D-galactoside, and 4-nitrophenyl-1-thio-beta-D-glucoside Avena sativa ?
-
?

Subunits

Subunits Comment Organism
pentamer or hexamer 5 or 6 * 60000, SDS-PAGE Avena sativa

Synonyms

Synonyms Comment Organism
26-desgluco-avenacosidase
-
Avena sativa

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
-
-
dissociation by freezing/thawing leads to complete loss of enzyme activity Avena sativa