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3.2.1.37: xylan 1,4-beta-xylosidase

This is an abbreviated version!
For detailed information about xylan 1,4-beta-xylosidase, go to the full flat file.

Word Map on EC 3.2.1.37

Reaction

(Xylbeta(1-4))x
+
H2O
=
beta-D-xylopyranose
 +
(Xylbeta(1-4))x-1

Synonyms

1,4-beta-D-xylan xylohydrolase, 1,4-beta-D-xylosidase, 1.4-beta-D-xylanase, exo-type, ABF3, AbfA, AbfB, AbXyl, alpha-arabinofuranosidase/beta-xylosidase, alpha-L-arabinofuranosidase, alpha-L-arabinofuranosidase 3, alpha-L-arabinofuranoside arabinofuranohydrolase, arabinofuranosidase 3, AXH-d3, Axy43A, BcXyl, beta-1,4-xylosidase, beta-D-xylopyranosidase, beta-D-xylosidase, beta-D-xylosidase/alpha-L-arabinofuranosidase, beta-D-xyloside xylohydrolase, beta-glucosidase/xylosidase, beta-xylosidase, beta-xylosidase A, beta-xylosidase B, beta-xylosidase I, beta-xylosidase II, beta-xylosidase-1, beta-xylosidase-2, beta-xylosidase-3, beta-xylosidase-4, betaXTE, betaXTR, bifunctional beta-glucosidase/xylosidase, BlxA, Bxl1, BxTW1, Bxyl, ccxyl3a, EcXyl43 beta-xylosidase, exo-1,4-beta-D-xylosidase, exo-1,4-beta-xylosidase, Exo-beta-(1,4)-xylanase, GH43 beta-1,4-xylosidase, GH43 xylosidase, GH43B6, glycoside hydrolase family 3 beta-xylosidase, More, Pae1263, RrXyl43A, Rubg3A, Rubg3B, RuBGX1, RuXyn1, SSO3032, Sxa, Thxyl43A, Tpexyl3, X12345, Xln-DT, Xyl, Xyl I, XYL1, Xyl3A, XYL4, xyl43, xyl43A, Xyl43C, Xyl5, XYLA, Xylan 1,4-beta-xylosidase, xylanase, XylB, XylC, XylCD2, xylobiase, xylosidase, XynB, XynB2, XynB3

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.37 xylan 1,4-beta-xylosidase

pH Stability

pH Stability on EC 3.2.1.37 - xylan 1,4-beta-xylosidase

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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2 - 6.5
the recombinant enzyme is stable up to pH 6.5, when incubated at 4°C for 4 h
752093
2 - 8
-
stable for 20 min at 50°C
136306
2 - 9.5
-
stable within
136285
2.2 - 9
the enzyme retains more than 80% activity after 72 h at pH 2.2-9.0
749653
2.5 - 7.4
-
at 37°C, very unstable below pH 1.7 and above pH 9.5
136274
2.9
-
pH 5.0, room temperature, 12 h, the enzyme maintains 73.1% of its maximal activity
744195
2.9 - 8
-
the enzyme maintains significant activity when pre-incubated at pH from 2.9 to 8.0 for 12 h, with 73.1% and 51.5% of its maximum activity, respectively
744195
3
-
18% of original activity remains
136286
3 - 4
-
stable for 30 min at 50°C
136292, 136304
3 - 6
-
stable for 24 h at 45°C
136295
3 - 7
-
-
136275
3 - 8
3 - 9
-
the enzyme is stable at pH range 4.0-9.0 for 4 h and retains 75 and 100% activity at pH 3.0 and 9.0, respectively, after incubation for 24 h
743995
3.5 - 7.2
-
-
683267
3.5 - 7.5
-
-
136293
4 - 10
-
unstable below pH 3, activity lost at pH 2
136278
4 - 12
the enzyme retains more than 80% residual activity after incubation at pH range of 4.0 to 12.0 for 24 h
749602
4 - 5
-
stable within, not active below pH 2.5 or above pH 6.5
136294
4 - 6
-
stable up to 8 h at room temperature
136277
4 - 7
-
stable at 30°C for 24 h, at 70°C for 15 min
136315
4 - 7.5
-
stable within a pH range of 4.0-7.5. The residual beta-xylosidase activity is more than 50% of the original purified enzyme activity after 1 h of incubation at 75 °C in the pH range from 4.5 to 7.5 at the absence of the substrate
750026
4.5
-
24 h, 78% residual activity
750810
4.5 - 5
-
stable for 30 min at 50°C
136292, 136305
5 - 6
Penicillium wortmanni
-
most stable within
136312
5 - 8
stable
749718
5.4 - 8.5
-
1 h, 80°C, 57% activity remaining
664409
5.5 - 9
-
stable for 30 min
742766
6 - 6.5
-
stable during 1 h at 20°C
136287
6 - 8
6 - 9
6.3 - 6.7
Malbranchea pulchella var. sulfurea
-
stable within
136292
6.5
-
6 h, 50°C, 80% residual activity
684109
6.5 - 9.5
-
the enzyme retains more than 60% activity between pH 6.5 and 9.5 for 24 h
745562
7
-
stable
704235
7 - 9
3 h, 70% of iniital activity
715674
7.5
-
activity decreases above, involvement of an essential acid-base group, which is protonated for catalysis
136303
8.8
-
6 h, 50°C, 60% residual activity
684109