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3.2.1.20: alpha-glucosidase

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

Word Map on EC 3.2.1.20

Reaction

maltotetraose
+ 3 H2O = 4 alpha-D-glucose

Synonyms

6-phospho-alpha-glucosidase, AAGR-1, AAGR-2, AAGR-3, AAGR-4, acid alpha-glucosidase, acid alpha-glucoside hydrolase, acid GAA, acid maltase, acidic alpha-glucosidase, AG, AgdB, AGL, AglA, aGlu, alglucosidase alfa, alpha-1,4-glucosidase, alpha-D-glucosidase, alpha-D-glucoside glucohydrolase, alpha-GD, alpha-glucopyranosidase, alpha-glucosid-specific GH4 enzyme, alpha-glucosidase, alpha-glucosidase B, alpha-glucosidase I, alpha-glucosidase II, alpha-glucosidase III, alpha-glucosidase MAL12, alpha-glucosidase MAL32, alpha-glucosidase type I, alpha-glucosidase type IV, alpha-glucoside glucohydrolase, alpha-glucoside hydrolase, alpha-transglucosidase, alphaGlu1, alphaGlu2, alphaGlu3, alphaGluFa, Amy112, CHEI, CWH41, exo-alpha-l, 4-glucosidase, exo-alpha-l,4-glucosidase, GAA, GH13 alpha-glucosidase, GluA, glucoamylase, glucoinvertase, glucosidoinvertase, glucosidosucrase, GlyFa1, GlyFa2, GSJ, HBG III, HBGase I, HBGase II, HBGase III, high pI alpha-glucosidase, intestinal alpha-glucosidase, intestinal maltase, JHGase I, MAL12, MAL2, MAL32, MalA, MalH, maltase, maltase glucoamylase, maltase-glucoamylase, maltodextrin glucosidase, MalZ, MGAM, More, myozyme, NAG, neutral alpha-glucosidase, PalH, Pars_2044, phospho-alpha-glucosidase, R-glucosidase, recombinant human GAA, rhGAA, Saci1160, st2525, Ta0298, TcaAG, TtGluA

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.20 alpha-glucosidase

pH Stability

pH Stability on EC 3.2.1.20 - alpha-glucosidase

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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2.5
50°C, t1/2: 34 min
729158
2.5 - 8
-
purified native enzyme, stable
666565
3 - 10
-
-
743072
3 - 6
-
50°C, 1 h, completely stable
393349
3 - 8
3 - 9
-
purified enzyme, completely stable
717984
3.5 - 6.5
-
30°C, 20 h, stable
393285
3.5 - 7
3.5 - 8
3.5 - 8.5
-
completely stable
656561
3.6 - 6.6
Saccharomyces logos
-
27°C, 20 h, stable
393308
4
-
most thermolabile at, high concentrations of sucrose protect from inactivation
393344
4 - 11
4 - 5.5
-
30°C, 20 h, stable, glucosidase I and II
393284
4 - 6
-
30°C, 20 h, stable
393291
4 - 7
4 - 7.3
-
37°C, 30 min, stable
393311
4 - 8
4 - 8.5
-
acid-alkaline tolerant, remains stable after 2 h incubation
707184
4 - 9
-
20 min, retains more than 80% of its activity
393264
4.5
-
labile below pH 4.5
655000
4.5 - 10.5
4.5 - 6
-
stable
136210
4.5 - 6.5
-
-
743850
5
-
37°C, 1 h, stable
393289
5 - 10
-
stable
655000
5 - 6
-
most stable at
393347
5 - 8.5
loss of less than 10% activity
654259
5 - 9
-
4°C, 24 h, stable
393316
5.2 - 6.8
80% of maximal activity of alpha-glucosidase from strain HB27 is retained between pH 5.2 and 6.8
692850
5.5
-
34°C, 0.009 mg/ml bovine serum albumin, 19 h, 67% remaining activity, the half-life is about 30 h
665788
5.5 - 6.5
-
20 min, completely stable
393264
5.5 - 7
-
30°C, 20 h, stable
393304
5.8
-
34°C, 0.009 mg/ml bovine serum albumin, 19 h, 64% remaining activity, the half-life is about 30 h
665788
6 - 8.5
6 - 9
6 - 9.5
-
1 h, 30°C, stable, maltase
393270
6.5
-
34°C, 0.009 mg/ml bovine serum albumin, 19 h, 69% remaining activity, the half-life is about 30 h
665788
6.8 - 7.3
-
30°C, 20 h, stable
393306
9
-
alpha-glucosidase remains fairly stable, maltase retains only 10% of its activity
393268