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3.2.1.8: endo-1,4-beta-xylanase

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

Word Map on EC 3.2.1.8

Reaction

(Xylbeta(1-4))n
+
H2O
=
(Xylbeta(1-4))n-m
 +
(Xylbeta(1-4))m

Synonyms

(1--> 4)-beta-xylan 4-xylanohydrolase, (1-4)-beta-xylan 4-xylanohydrolase, 1,4-beta-D-xylan xylanohydrolase, 1,4-beta-D-xylan xylanohydrolase 22, 1,4-beta-D-xylan-xylanohydrolase, 1,4-beta-xylan xylanohydrolase, 1,4-beta-xylanase, 34 kDa xylanase, Abf51A, Abf62A-Axe6A, Acel_0180, acidophilic endo-1,4-beta-xylanase, AfXynA, AfXynB, alkaline active xylanase, alkaline xylanase, AMX-4 xylanase, AnxB, AxB8, Axy43A, basic xylanase, Bcx, beta-1, 4-endoxylanase, beta-1,4-D-xylanase, beta-1,4-endoxylanase, beta-1,4-xylan hydrolase, beta-1,4-xylan xylanohydrolase, beta-1,4-xylanase, beta-1,4endoxylanase, beta-D-xylanase, beta-endoxylanase, beta-xylanase, bifunctional cellulase/xylanase, bifunctional endoglucanase/xylanase, bifunctional xylanase/endoglucanase, BlxA, BSX, BSXY, Btx, Calow_0124, ctendo7, Cthe_3012, CTHT_0045780, CtXynGH30, EGXA, endo(1-4)beta-xylanase, endo-(1,4)-beta-xylanase, endo-(1--> 4)-beta-xylanase, endo-1,4-beta-D-xylanase, endo-1,4-beta-xylanase, endo-1,4-beta-xylanase II, endo-1,4-xylanase, endo-acting beta-1,4-xylanase, endo-beta-(1'4)-xylanase, endo-beta-(1,4)-xylanase, endo-beta-1, 4-xylanase, endo-beta-1,4-xylanase, endo-beta-1,4-xylanase 2, endo-beta-1,4-xylanase2, endo-xylanase, endoxylanase, endoxylanase I, endoxylanase NtSymX11, endoxylanase Xys1DELTA, EXY1, family 11 endoxylanase, family 11 xylanase, family 30 glycoside hydrolase subfamily 8 glucuronoxylan endo-beta-1,4-xylanase, family-10 endo-1,4-beta-xylanase, FIA-xylanase, FOTG_15646, G/11 endo-1,4-beta-xylanase, GC25 xylanase, GH 10 xylanase, GH 11 xylanase, GH-10 endo-1,4-beta-xylanase, GH-11 endo-1,4-beta-xylanase, GH10 endo-beta-1,4-xylanase, GH10 xylanase D, GH11 xylanase, GH43B6, GH7 endoglucanase, GHF 10 endoxylanase, GHF 11 endoxylanase, glycoside hydrolase family 11 endoxylanase, glycoside hydrolase family 8 domain protein, GXYN, KRICT PX1, MalAC0309_0409, More, MROS_2090, MROS_2091, MROS_2495, Mxyn10, MYCTH_49824, MYCTH_56237, ORF4, Pedsa_2704, PhX20, PhX33, PsGH10A, pXyl, RrXyn11A, RuCelA, Rut C-30, SCO5931, SipoEnXyn10A, SlxB, SoxB, SSO1354 protein, TAXI, TERTU_4506, Tfu_1213, TLX, TmxB, Tpet_0854, TRX II, TtGH8, Wxl1, X-I, X-II, X34, Xa, Xln-1, xlnA, xlnB, XT6, Xyl, Xyl I, Xyl II, XYL1, Xyl10A, Xyl10B, XYL10C, Xyl11, XYL1p, XYL2, Xyl2090, Xyl2091, Xyl2495, Xyl30, XYLA, xylanase, xylanase 1, xylanase 10A, xylanase 10B, xylanase 10C, xylanase 11 A, xylanase 11A, xylanase 11J, xylanase 2, Xylanase 22, xylanase 43A, xylanase A, xylanase B, xylanase bI, xylanase bII, xylanase C, xylanase I, xylanase II, xylanase III, xylanase J, xylanase LC9, xylanase Xyl10A, xylanase Xyl11A, xylanase XynZF-2, xylanase, endo-1,4-, XylB, XylB8, XylC, XYLD, XylE, XylF2, XylG, xylH, xylM, XylX, XYLY, Xyn II, Xyn III, Xyn-b39, Xyn-Lxy, Xyn1, Xyn10, Xyn10A, Xyn10B, Xyn10E, XYN10G5, XYN10Ks_480, Xyn11, Xyn11A, XYN11F63, XYN11Ks_480, Xyn11NX, Xyn12.2, Xyn162, Xyn2, Xyn3, Xyn30A, Xyn5, XynA, XynA119, XynA19, XynA4, XynAS27, XynAS9, XynB, XynB18, XynBS27, XynC, XynD, XynE15, XynE2, XynG1, XynGH30, XynGR40, XYNII, XynIII, XynJ, XynS14, XynS20, XynSW1, XynSW3, XynT, XynY, XynZ, Xys1, Xys1delta, xysA

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.8 endo-1,4-beta-xylanase

pH Range

pH Range on EC 3.2.1.8 - endo-1,4-beta-xylanase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
1 - 3
Halalkalibacterium halodurans
-
83% of maximum activity
1 - 7
-
pH 1.0: about 75% of maximal activity, pH 7.0: about 40% of maximal activity
1.5 - 4
60% of maximal activity at pH 1.5 and pH 4.0
1.5 - 6.5
-
activity range, 80% of maximal activity by xylanase I at pH 1.6 and pH 3.0, inactive at pH 7.0, profile, overview
10 - 12
Halalkalibacterium halodurans
-
more than 75% of maximum activity within
2 - 10
more than 80% of maximum activity within this range
2 - 12
60% of maximal activity at pH 6.0 and pH 8.0, pH profile, recombinant enzyme, overview
2 - 7
first peak at pH 3.0 with 63% of maximal activity, and second peak with maximal activity at pH 4.5-5.0, profile, overview
2 - 9
2.4 - 7.4
recombinant enzyme, rapid decrease in activity above pH 6.4, profile, overview
2.5 - 11.5
-
activity range, profile overview
2.5 - 5
-
maintains relative activity over 50%
2.5 - 7.5
-
activity range, 60% of maximal activity by xylanase II at pH 3.5 and pH 7.0, 25% at pH 2.5, profile, overview
2.6 - 7.6
-
50% of maximal activity at pH 3.5 to pH 5.5
2.8 - 7.5
-
pH 2.8: about 30% of maximal activity, pH 7.5: about 40% of maximal activity
3 - 10
3 - 11
3 - 8
3 - 9
3.5 - 5
pH 3.5: about 55% of maximal activity, pH 5.0: about 65% of maximal activity
3.5 - 5.5
-
more than 75% of maximal activity at pH 3.5 and at pH 5.5
3.5 - 6.5
3.5 - 7
3.5 - 7.5
-
12% of maximal activity at pH 3.5 and at pH 7.5
3.5 - 8
-
pH 3.5: about 70% of maximal activity, pH 8.0: about 30% of maximal activity, xylanase IA
3.5 - 8.5
activity range, recombinant enzyme, profile overview
3.5 - 9.5
Thermochaetoides thermophila
activity range, profile overview
3.6 - 6.5
-
more than 50% maximal activity
3.8 - 9.4
XynA4 shows over 40% of maximal activity within this range
4
40% of maximum activity
4 - 10
4 - 11
4 - 12
-
86% of maximal activity at pH 4.0, 97% at pH 8.0, 30% activity at pH 10.0-12.0
4 - 7
4 - 8
4 - 8.5
4 - 9
4.5 - 10
4.5 - 10.5
activity range, over 85% of its maximum activity at a pH range of pH 5.0 to pH 6.5
4.5 - 6.5
4.5 - 7
more than 80% of maximum activity
4.5 - 7.5
-
pH 4.5: about 75% of maximal activity, pH 7.5: about 65% of maximal activity
4.5 - 8.5
more than 60% of maximum activity
4.8 - 6.4
-
approximately 90% of the maximal (relative) activity is gained in the pH range 4.8-6.4 at 50°C in citrate/phosphate buffer
4.8 - 8.4
-
pH 4.8: about 70% of maximal activity, pH 8.4: about 60% of maximal activity
5 - 10
5 - 11
5 - 7
5 - 7.7
-
more than 50% of maximal activity at pH 5.0 and at pH 7.0
5 - 9
5.3 - 10.6
-
about 50% of maximal activity at pH 5.3 and at pH 10.6
5.5
29% of maximum activity
5.5 - 12
-
activity range, profile, overview
5.5 - 7
pH 5.5: about 40% of maximal activity, pH 7.0: about 70% of maximal activity
5.5 - 7.5
over 60% of maximal activity within this range, recombinant enzyme
5.5 - 8.5
more than 50% activity retained, enzyme activity decreases sharply below pH 5.5 and above pH 9.0, negligible amount of activity at pH below 5.0 and above 10.5
5.5 - 9
5.5 - 9.5
-
more than 90% of maximum activity
5.8 - 6.2
-
-
6
about 45% of maximum activity
6 - 11
-
pH 6.0: 70% of maximal activity, pH 11.0: 58.3% of maximal activity
6 - 12
activity range
6 - 8
40% activity at pH 8.0, no activity at pH 4.0 and pH 9.0
6 - 9
more than 60% of maximum activity, recombinant protein, both with and without His-tag
6.5 - 10
more than 80% of maximum activity
6.5 - 7.5
-
70% of maximal activity at pH 6.5, 85% at pH 7.5
6.5 - 8.5
6.5 - 9
-
the mutant enzyme shows higher activity at pH 9.0 than the wild-type enzyme
7
70% of maximum activity
7 - 9
7.5 - 9.2
-
more than 70% of maximal activity at pH 6.0 and at 10.5
additional information
-
pH-dependence of activity of wild-type and mutant enzymes