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Literature summary for 3.2.1.15 extracted from

  • Andre-Leroux, G.; Tessier, D.; Bonnin, E.
    Endopolygalacturonases reveal molecular features for processivity pattern and tolerance towards acetylated pectin (2009), Biochim. Biophys. Acta, 1794, 5-13.
    View publication on PubMed

Protein Variants

Protein Variants Comment Organism
additional information amino acids S191/D240 of PGI are unique in binding the pectin backbone and are possibly crucial for its specificity. D240 and R96 of PGI work as crampons to favour the sliding of the substrate Aspergillus niger
additional information amino acids S234/S91 of PGII are unique in binding the pectin backbone and are possibly crucial for its specificity Aspergillus niger
additional information amino acids S245/V89 of PG are unique in binding the pectin backbone and are possibly crucial for its specificity Fusarium fujikuroi

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
polygalacturonate + H2O Aspergillus niger
-
oligogalacturonates
-
?
polygalacturonate + H2O Fusarium fujikuroi
-
oligogalacturonates
-
?

Organism

Organism UniProt Comment Textmining
Aspergillus niger P26213
-
-
Aspergillus niger P26213 isozyme PGI
-
Aspergillus niger P26214
-
-
Aspergillus niger P26214 isozyme PGII
-
Fusarium fujikuroi Q07181
-
-
Fusarium fujikuroi Q07181 synonym Gibberella fujikuroi
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
pectin + H2O endopolygalacturonases hydrolyse the 1-4 linkages between two alpha-D-galacturonic acids of the smooth homogalacturonan regions of pectin Aspergillus niger ?
-
?
pectin + H2O endopolygalacturonases hydrolyse the 1-4 linkages between two alpha-D-galacturonic acids of the smooth homogalacturonan regions of pectin Fusarium fujikuroi ?
-
?
pectin + H2O endopolygalacturonases hydrolyse the 1-4 linkages between two alpha-D-galacturonic acids of the smooth homogalacturonan regions of pectin. Isozyme PGI is not only the most potent but also the most tolerant enzyme to hydrolyse acetylated pectin Aspergillus niger ?
-
?
polygalacturonate + H2O
-
Aspergillus niger oligogalacturonates
-
?
polygalacturonate + H2O
-
Fusarium fujikuroi oligogalacturonates
-
?
polygalacturonic acid + H2O
-
Fusarium fujikuroi oligogalacturonates
-
?

Synonyms

Synonyms Comment Organism
endoPG
-
Aspergillus niger
endoPG
-
Fusarium fujikuroi
endopolygalacturonase
-
Aspergillus niger
endopolygalacturonase
-
Fusarium fujikuroi
PGI
-
Aspergillus niger
PGI isozyme Aspergillus niger
PGII
-
Aspergillus niger
PGII isozyme Aspergillus niger
poly [1, 4-alpha-D-galacturonide] glycano-hydrolase
-
Aspergillus niger
poly [1, 4-alpha-D-galacturonide] glycano-hydrolase
-
Fusarium fujikuroi