About: Polygalacturonases from potato tubers     Goto   Sponge   NotDistinct   Permalink

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Description
  • Potato tubers produce small amount of polygalacturonase. Multiple forms of this enzyme were observed with isoelectric points between 4.6 and 7.2 (major form about 6.5). Polygalacturonase isoforms were characterized by their molecular masses, pH optima, optimum of temperature, thermal stability, KM on polymeric substrate and action pattern on polymeric and oligomeric substrate. All forms showed highly random cleavage pattern of pectate and absence of activity towards both di(D-galactosiduronic) acid and tri(D-galactosiduronic) acid, particularly the trimer. Based on these results potato polygalacturonase (endopolygalacturonase, EC 3.2.1.15) can be characterized as an enzyme with unusual degradation of oligomeric substrates yielding trimer as the end product.
  • Potato tubers produce small amount of polygalacturonase. Multiple forms of this enzyme were observed with isoelectric points between 4.6 and 7.2 (major form about 6.5). Polygalacturonase isoforms were characterized by their molecular masses, pH optima, optimum of temperature, thermal stability, KM on polymeric substrate and action pattern on polymeric and oligomeric substrate. All forms showed highly random cleavage pattern of pectate and absence of activity towards both di(D-galactosiduronic) acid and tri(D-galactosiduronic) acid, particularly the trimer. Based on these results potato polygalacturonase (endopolygalacturonase, EC 3.2.1.15) can be characterized as an enzyme with unusual degradation of oligomeric substrates yielding trimer as the end product. (en)
  • Potato tubers produce small amount of polygalacturonase. Multiple forms of this enzyme were observed with isoelectric points between 4.6 and 7.2 (major form about 6.5). Polygalacturonase isoforms were characterized by their molecular masses, pH optima, optimum of temperature, thermal stability, KM on polymeric substrate and action pattern on polymeric and oligomeric substrate. All forms showed highly random cleavage pattern of pectate and absence of activity towards both di(D-galactosiduronic) acid and tri(D-galactosiduronic) acid, particularly the trimer. Based on these results potato polygalacturonase (endopolygalacturonase, EC 3.2.1.15) can be characterized as an enzyme with unusual degradation of oligomeric substrates yielding trimer as the end product. (cs)
Title
  • Polygalacturonases from potato tubers
  • Polygalacturonasa z brambor (cs)
  • Polygalacturonases from potato tubers (en)
skos:prefLabel
  • Polygalacturonases from potato tubers
  • Polygalacturonasa z brambor (cs)
  • Polygalacturonases from potato tubers (en)
skos:notation
  • RIV/00216305:26310/05:PU52678!RIV07-MSM-26310___
http://linked.open.../vavai/riv/strany
  • 267-272
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • S
http://linked.open...iv/cisloPeriodika
  • 60
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 536656
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26310/05:PU52678
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • OLIGOGALACTURONIC ACIDS, ENDOPOLYGALACTURONASE-I, ASPERGILLUS-NIGER, CRYSTAL-STRUCTURE, TOMATO FRUIT, PURIFICATION, PECTINESTERASE, FIRMNESS, ENZYMES, WEEVIL (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [44971BD9EA48]
http://linked.open...i/riv/nazevZdroje
  • Biológia
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 2005(3)
http://linked.open...iv/tvurceVysledku
  • Omelková, Jiřina
issn
  • 0006-3088
number of pages
http://localhost/t...ganizacniJednotka
  • 26310
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