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2.4.1.18: 1,4-alpha-glucan branching enzyme

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

Word Map on EC 2.4.1.18

Reaction

2 1,4-alpha-D-glucan =

alpha-1,4-D-glucan-alpha-1,6-(alpha-1,4-D-glucan)
+
H2O

Synonyms

(1-4)-alpha-D-glucan:(1-4)-alpha-D-glucan 6-alpha-D-[(1-4)-alpha-D-glucano]-transferase, 1,4-alpha-glucan branching enzyme, 1,4-alpha-glucan branching enzyme 1, AGBE, alpha-1,4->alpha-1,6-glycosyltransferase, alpha-1,4-glucan branching enzyme, alpha-1,4-glucan:alpha-1,4-glucan 6-glycosyltransferase, alpha-1,4-glucan:alpha-1,4-glucan-6-glycosyltransferase, alpha-glucan branching enzyme, alpha-glucan-branching glycosyltransferase, amylo-(1,4-1,6)-transglycosylase, amylo-(1,4->1,6)-transglycosylase, amylose isomerase, BBE, BE, BE-01, BE-02, BE-II, BE1, BE2, BE3, BEI, BEII, BEIIa, BEIIb, BGE, branching enzyme, branching factor, enzymatic, branching glycosyltransferase, ChlBE, Dg GBE, Dr GBE, enzyme Q, full-length starch branching enzyme II, GBE, GBE1, GBE1 enzyme, GH13 GBE, GH57-type glycogen branching enzyme, GlgB, glucan transferase, glucosan transglycosylase, glycogen branching enzyme, glycogen branching enzyme GBE1, glycosyltransferase, alpha-glucan-branching, HosBE, IbSBEI, mSBEIIa, ORF Rv1326c, PH1386, PhGBE, PvSBE1, PvSBE2, Q-enzyme, QE, rBEI, rice branching enzyme I, RMEBE, RoBE, SBE, SBE A, SBE B, SBE I, SBE IIa, SBE Iib, SBE-I, SBE1, SBEI, SBEII, SBEIIA, SBEIIB, ScoBE, SmGBE, starch branching enzyme, starch branching enzyme I, starch branching enzyme II, starch branching enzyme IIa, starch branching enzyme IIb, starch branching enzyme SBE I, starch branching enzyme SBE IIb, starch branching enzyme-I, starch-branching enzyme, starch-branching enzyme Ia, starch-branching enzyme IIa, starch-branching enzyme IIb, starch-branching enzymes IIa, starch-branching enzymes IIb, starch-branching-enzyme, TK1436, VsbeII

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.18 1,4-alpha-glucan branching enzyme

pH Stability

pH Stability on EC 2.4.1.18 - 1,4-alpha-glucan branching enzyme

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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
3 - 11
-
the enzyme has broad pH stability between pH 3.0 and 11.0 at 4°C, and prefers weakly acidic conditions at high temperatures (85°C). More than 96% of the initial enzyme activity is retained after incubation at pH 3.0-11.0 for 1 h. The enzyme loses all activity when incubated for 15 min at pH 3.0 or 4.0, and its half-life is 14.9 min at pH 5.0. The enzyme retains 72.1% of its initial activity after 1 h at pH 6.0 in sodium citrate buffer
758278
4 - 8
relatively stable during 1 h of incubation
703793
5
-
irreversible inactivation below
636920
5 - 9
the enzyme is stable between pH 5.0 and 9.0 where more than 50% of enzyme activity remains after the 30 min of pH treatment
757910
5.5 - 10.5
-
more than 50% of activity is retained when the enzyme is incubated at 4°C and pH 5.5-10.5 for 48 h,with the enzyme being most stable at pH 9.5
756961
5.5 - 7.5
the enzyme is fairly stable between pH 5.5 and 7.5, retaining more than 80% of its activity for 1 h
756764
5.5 - 9.5
purified recombinant His-tagged enzyme, fairly stable over the broad pH range, retaining more than 80% of its activity
736135
7 - 8.5
-
4°C, 16 h, less than 10% loss of activity, isoenzyme SBE1
636954
7 - 9
-
4°C, 16 h, less than 10% loss of activity, isoenzyme SBE2
636954
7 - 9.5
7.3 - 8.1
-
4°C, 16 h, stable
636932