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pectinesterase

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Also known as pectase, pectin methoxylase, pectinoesterase, pectin pectylhydrolase, pectin methyl esterase, pectin methylesterase, pectin demethoxylase

Pectinesterase (EC 3.1.1.11; systematic name pectin pectylhydrolase) is a ubiquitous cell-wall-associated enzyme that presents several isoforms that facilitate plant cell wall modification and subsequent breakdown. It catalyzes the following reaction:

Key facts

Enzyme.Name
pectinesterase
Enzyme.EC_number
3.1.1.11
Enzyme.CAS_number
9025-98-3
Enzyme.GO_code
0030599
Enzyme.image
2ntb.png
Enzyme.caption
Pectin methylesterase from Dickeya dadantii in complex with hexasaccharide. PDB

via Wikipedia infobox

Wikidata facts

Show 2 more facts
EC enzyme number
3.1.1.11
Commons category
Pectin methylesterase
Sources (3)

via Wikidata · CC0

~8 min read

Article

7 sections
Contents
  • Function
  • Esterification of pectin
  • Molecular biology and biochemistry
  • Plant isoforms
  • Structure
  • References
  • External links

Pectinesterase (EC 3.1.1.11; systematic name pectin pectylhydrolase) is a ubiquitous cell-wall-associated enzyme that presents several isoforms that facilitate plant cell wall modification and subsequent breakdown. It catalyzes the following reaction: pectin + n H2O = n methanol + pectate

It is found in all higher plants as well as in some bacteria and fungi. Pectinesterase functions primarily by altering the localised pH of the cell wall resulting in alterations in cell wall integrity.

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