Oligogalacturonate hydrolase with unique substrate preference from the pulp of parsley roots

Abstract: The main form of pectate hydrolases in the cell wall of parsley roots showed a unique substrate preference of a plant exopolygalacturonase because it clearly preferred the substrates with degree of polymerization about 10. This form was separated from the others, purified and characterized. Enzyme exhibited sharp pH optimum corresponding to pH 4.7, molecular mass 53.5 kDa, and isoelectric point 5.3. It was stable at 50°C in 2-h assay and had optimum of temperature at 60°C (activation energy being 37.0 kJ/mol). The interaction with concanavalin A indicated the glycosylation of enzyme. Substrates were cleaved from the non-reducing end.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Oligogalacturonate hydrolase with unique substrate preference from the pulp of parsley roots ; volume:64 ; number:2 ; year:2009 ; pages:228-234 ; extent:7
Biologia ; 64, Heft 2 (2009), 228-234 (gesamt 7)

Urheber
Flodrová, Dana
Garajová, Soňa
Malovíková, Anna
Mislovičová, Danica
Omelková, Jiřina
Stratilová, Eva

DOI
10.2478/s11756-009-0038-2
URN
urn:nbn:de:101:1-2409221621406.604898374803
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:30 MESZ

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Beteiligte

  • Flodrová, Dana
  • Garajová, Soňa
  • Malovíková, Anna
  • Mislovičová, Danica
  • Omelková, Jiřina
  • Stratilová, Eva

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