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Literature summary extracted from

  • Vikso-Nielsen, A.; Christensen, T.M.I.E.; Bojko, M.; Marcussen, J.
    Purification and characterization of beta-amylase from leaves of potato (Solanum tuberosum) (1997), Physiol. Plant., 99, 190-196.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.2 alpha-cyclodextrin
-
 Solanum tuberosum
3.2.1.2 beta-cyclodextrin
-
 Solanum tuberosum

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.2 0.73
-
 p-nitrophenylmaltopentaoside
-
 Solanum tuberosum

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.2 56000
-
 2 * 56000, SDS-PAGE Solanum tuberosum
3.2.1.2 111000
-
 gel filtration Solanum tuberosum

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.2 Solanum tuberosum
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.2
-
 Solanum tuberosum

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.2 leaf
-
 Solanum tuberosum
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.2 5
-
-
 Solanum tuberosum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.2 amylopectin + H2O
-
 Solanum tuberosum beta-maltose + ?
-
 ?
3.2.1.2 amylose + H2O
-
 Solanum tuberosum beta-maltose
-
 ?
3.2.1.2 p-nitrophenyl alpha-D-glucopyranoside + H2O
-
 Solanum tuberosum p-nitrophenol + D-glucose
-
 ?
3.2.1.2 p-nitrophenylmaltopentaoside + H2O
-
 Solanum tuberosum ?
-
 ?
3.2.1.2 starch + H2O potato starch Solanum tuberosum maltose + ?
-
 ?

Subunits

EC Number Subunits Comment Organism
3.2.1.2 dimer 2 * 56000, SDS-PAGE Solanum tuberosum

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.2 40
-
 hydrolysis of p-nitrophenylmaltopentaoside Solanum tuberosum

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.2 40
-
 unstable above Solanum tuberosum

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.2 6.5
-
 hydrolysis of p-nitrophenylmaltopentaoside Solanum tuberosum