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3.2.1.15: endo-polygalacturonase

This is an abbreviated version!
For detailed information about endo-polygalacturonase, go to the full flat file.

Word Map on EC 3.2.1.15

Reaction

(1,4-alpha-D-galacturonosyl)n+m
+
H2O
=
(1,4-alpha-D-galacturonosyl)n
+
(1,4-alpha-D-galacturonosyl)m

Synonyms

ADPG1, ADPG2, Aj-PGase, alkaline endo-PG, ARABIDOPSIS DEHISCENCE ZONE POLYGALACTURONASE1, At1g48100, BcPeh28A, BPN3, CluPG1, D-galacturonase, endo PG, endo-D-galacturonanase, endo-D-galacturonase, endo-PG, endo-PG I, endo-pgaA, endo-polygalacturonase, endo-polygalacturonase A, endo-polygalacturonase C, endo-polygalacturonase I, endo-polygalacturonase II, endo-polygalacturonase-3, endo-TePG28b, endogalacturonase, endopectinase, endoPG, EndoPG I, endoPG II, endopolygalacturonase, endopolygalacturonase I, endopolygalacturonases, endopolygalacturonate lyase, EnPG28A, EPG, Epg1-2p, EPG4, Exo-PG, exo-polygalacturonase, FgPG, FpPG, liquifying polygalacturonase, LLP-A1.1 protein, LLP-PG, Magnaporthe oryzae density dependent germination regulator, male fertility 9, MDG1, MF9, More, MpPG2, non-acidic polygalacturonase, OGH, oligogalacturonate hydrolase, P1/P3, P2C, pectate hydrolase, pectic depolymerase, pectic hydrolase, pectin depolymerase, pectin hydrolase, pectin polygalacturonase, pectinase, pectinase SS, pectolase, pectozyme, Peh28A, PehA, PehB, PG, PG II, PG-2A, PG-3, PG1, PG2, PG28A, PG3, PG4, PG5, PG6, PG63, PG8fn, PGA, PGase, PGase SM, PGC, PGI, PGII, PGIP, PGL, Pgu1, phylendonase, poly [1, 4-alpha-D-galacturonide] glycano-hydrolase, poly-alpha-1,4-galacturonide glycanohydrolase, poly-[1,4-alpha-D-galacturonide] glycanohydrolase, polygalacturonase 1, polygalacturonase I, polygalacturonase II, polygalacturonase inhibiting protein 1, polygalacturonase p36, polygalacturonase p40, polygalacturonase-3, polygalacturonase-inhibitor-like, QRT2, QUARTET2, remanase, RPG1, ScPgu1, SpPgu1

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.15 endo-polygalacturonase

pH Range

pH Range on EC 3.2.1.15 - endo-polygalacturonase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2 - 5
-
high activity in the pH range 2.0-3.0 towards soluble and insoluble substrates, while being inactive at pH 5.0
2 - 6
2.2 - 7
when tested against pectins, the enzyme shows activity over a broad acidic pH range with more than 15% activity at pH 2.2-6.0 towards citrus pectin; and more than 26.6% activity at pH 2.2-7.0 towards apple pectin
2.4 - 5.2
more than 30% of maximal activity from pH 2.4 to 5.2
2.5 - 4.5
the enzyme shows more than 60% activity between pH 2.5 and 4.5
2.5 - 5
about 35% activity at pH 2.5, about 70% activity at pH 3.0, 100% activity at pH 3.5, about 93% activity at pH 4.0, about 90% activity at pH 4.5, about 30% activity at pH 5.0
3 - 10
3 - 4.5
-
pH 3.0: about 50% of maximal activity, pH 4.5: optimum
3 - 5
3 - 5.5
-
pH 2.6: activity is about zero, pH 3.0: about 80% of maximal activity, pH 3.5-5.5: optimal activity
3 - 6
3 - 7
3 - 8
3.5 - 4.5
3.5 - 5
-
75-100% of maximal activity in the pH-range 3.5-5.0
3.5 - 5.5
3.5 - 6
-
pH 3.5: about 30% of maximal activity, pH 6.0: about 30% of maximal activity
3.5 - 6.5
-
over 50% of maximal acitivity at pH 3.5-6.0, 32% at pH 6.5
3.8 - 4.5
-
pH 3.8: about 80% of maximal activity, pH 4.5: about 50% of maximal activity, PG2
3.8 - 4.9
-
pH 3.8: about 40% of maximal acticity, pH 4.9: about 50% of maximal activity, PG1
4 - 5.5
4 - 6
4 - 6.5
40% of maximal activity within this range
4 - 7
4 - 8
4 - 9
4.3 - 6
-
about 85% of maximal activity at pH 4.3 and pH 6.0
4.5 - 5.5
4.5 - 6
more than 50% activity between pH 4.5 and 6.0
8 - 11
-
more than 60% activity between pH 8.0 and 11.0, no activity at pH 6.0 and below
8.1 - 11.5
-
more than 90% activity between pH 8.1 and 11.5
8.5 - 12
-
pH 8.5: about 30% of maximal activity, pH 12.0: about 40% of maximal activity
additional information
-
PG5 activity in the permeate decreases, as compared to fermentation broth, at pH values higher than 2.5 being negligible at pH 5.0