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3.2.1.67: galacturonan 1,4-alpha-galacturonidase

This is an abbreviated version!
For detailed information about galacturonan 1,4-alpha-galacturonidase, go to the full flat file.

Word Map on EC 3.2.1.67

Reaction

[(1->4)-alpha-D-galacturonide]n
+
H2O
=
[(1->4)-alpha-D-galacturonide]n-1
+
D-galacturonate

Synonyms

alkaline exo-polygalacturonase, carrot exopolygalacturonase, CbPelA, corn pollen polygalacturonase, EPG, exo polygalacturonase, exo-D-galacturonanase, exo-D-galacturonase, Exo-PG, exo-PGase, exo-PGI, exo-PGII, exo-PGU B, exo-poly alpha galactouronosidase, exo-polygalacturonanase, exo-polygalacturonase, exolytic PGase, exoPG, exoPG1, exoPG2, exoPGase, exopoly-D-galacturonase, exopolygalacturonanase, exopolygalacturonase, exopolygalacturonase B, exopolygalacturonase X, Galacturan 1,4-alpha-galacturonidase, GH28, macerating enzyme, More, MpPG1, MpPG3, oligogalacturonate hydrolase, peach exopolygalacturonase, PECI, pectinase, PelB, PG III, PGase, PGase I, PGC2, PGC3, PGI, poly 1,4-alpha-D-galacturonide-galacturonohydrolase, Poly(1,4-alpha-D-galacturonide)galacturonohydrolase, poly(galacturonate)hydrolase, poly-(1-4)-alpha-D-galactosiduronate glycanohydrolase, polygalacturonanase, polygalacturonase, polymethylgalacturonase, RPG15, RPG16, SSXPG1, SSXPG2, TM0437, TmGalU, YeGH2

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.67 galacturonan 1,4-alpha-galacturonidase

pH Range

pH Range on EC 3.2.1.67 - galacturonan 1,4-alpha-galacturonidase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2 - 12
35% of maximal ativity within this range
2.2 - 5
-
isoform exoPG1 shows 50% and 35% activity at pH 2.2 and 5.0, respectively
2.8 - 10
-
PGase I
3 - 10
-
the enzyme shows the highest activity between pH 4.5 and pH 5.5, and more than 80% between pH 5.0 and pH 6.5. At pH 3.0-4.5, the enzyme shows about 73% activity, at pH 10.0 44% activity
3 - 5
3 - 6
3 - 7
3.4 - 3.8
-
exo-PG1
3.4 - 4.2
-
exo-PG2
3.5 - 6.5
3.5 - 7
Geotrichum lactis
-
-
4 - 10
-
the enzyme shows more than 90% activity between pH 4.0 and 10.0
4 - 7.5
-
polygalacturonate
4 - 8
-
50% of maximal activity at pH 8.0, profile, overview
4.5 - 6
4.5 - 7.5
-
activity range, profile, overview
5 - 8
-
pH 5.0: about 50% of maximal activity, pH 8.0: about 55% of maximal activity
5.9 - 6.9
pH 5.9: about 40% of maximal activity, pH 6.9: about 75% of maximal activity